So what's your preference?

Yes. This is very subjective point. 

Always like to be on the frontline and make dmg at the same time + to be more tankier so...
2h warrior City She-Elf is my favorite. Then DW warrior: good survivability, good damage, not boring to play (2h warriors are not influenced by some dirty fight or dragon's abilities already in the very beginning; DW warrior does a good damage and can take more punches than a rogue + using of skills helps).
Mages: not my type tbh, but if play it is DW AW.
Rogues: they are number 2, with the right build they are killing-machines (Zevran is always in my party - just set up tactics).
SnS warrior is rather boring: now try to play SnS warrior like in DAI 2h reaver - have a tank, 1 healer, my GW and a DW rogue are damagers - for now, just finished Lothering, it is better than expected.
Archer: does a very good damage but boring to the death - I use abilities only not to fall asleep, otherwise enemies just die from auto-attack.

The only thing that matters in this world, or any world, for that matter is power and money.  A warrior will never make money and has nothing other than raw physicality to offer.

While I would never say that a warrior/soldier is not important, they are still a dime a dozen.  What they do takes very little skill.  "Me Hit Now" is about as far as it goes.

A mage or a rogue is a craft that needs to be learned and practiced.

It's the difference between a shotgun and archery.  Sure you can have the same end result, but a shotgun doesn't take any skill, just strong finger.

Don't know about all countries, but in many of them people are not even allowered to "serve the people" w/o military service. You must go through it anyway.

And I agree with Noxluxe (apologize if I write the same in other words as I agree with your post totally, but would like to write and add something).

To be a warrior in DA is a symbole of status. Remember that already at Ostagar you see that almost every person is a warrior in a heavy armor with 2h weapon. It's obvious to wear heavy armor and having at least exactly 2h weapon is respectful. And you even meet hell of 2h warriors already in the beginning of the game, the king included btw. Even if someone had a shield, he/she still had 2h weapon.
Thus, being a warrior means having a status, being respected, it means you can earn for you life, for your family.

Now, I don't agrue that mages and rogues useful, no - they have their own paths to use skills, BUT to call a warrior "hit me now only", saying that warrior has nothing to offer but physicalities? I am sorry, but that's rediculous.
Warriors in pair with those "physicalities" use their brains actually: they study, they learn military strategy, they practice a lot not only to take a punch, but to make f"cking amount of damage (of course with the right build). They use brains and use them a lot not to die. They learn and study as well as mages and rogues.
So "hit me now" - is only a build for those who want to be a tank (even with that buld you need skills, practice, study how NOT to get flanked or stabbed).

Warriors are skilled, clever, always-practicing, always-learning people who are able not only to fight clever (I am not talkig about unfortunate warrior, but in general), but are able to earn money, who have respect for what they can do. Why? (in addition). Handling a 2h sword/maul or use a shield in a right way takes lots of above skills and knowledge. It's a dangerous work - to be on the frontline and being able to take punches and at the same time make punches yourself and survive in the end.

The same goes for an archer - not only a rogue (why is there even a comparison with a SG? Only because of streangth? Would have been more lore-friendly use comparison with a 2h maul). Using a bow (I am not talking about modern bows which are rather easy to use and are just for fun) needs so much streangth; and at the same time you again have to learn some tricks for your enemies and not to miss using them and watch your back not to die.

Warriors with bad training end up not good, but it's a mistake to say they are "important but mostly for "hit me reason".

Warriors/rogues/mages - they all have to master their skills and not to die. And, IMO, warriors are even in worse position as they fight on the frontline w/o some stealth-abilities. Only thinking...mages could be more in danger because of the fade-connection and resisting demons whispering you 24/7 "come to me"; rogues could be cought and remain w/o fingers. So, yeah, mages - abominations, rogues w/o fingers are dead, warrior with bad injuries won't be able to fight - they are all in danger. But warriors? Clever and skilled just like some mage or rogue, only w/o danger to turn into abomination or end up w/o fingers because of your hobby to steal.

To cut a long story short - Warriors are damn impressive, skillful and clever ones. My favorite and most experienced class.

Depends. I like power, so it is a bit predictable isnt it...

If solo, Mage (origins and awakening). Why? Because yes.

If group, Archer Rogue (voted for this one). Why? Because also yes.

On a more serious note.

For solo: Mages are beast, tons of cc, debuff and damage. The only problem is against traps and locked chests. Otherwise, a spell cast focused full magic mage is what i go with.

For group: Although mages are very good in groups as well (because OP x 3), i like rogue archers (or just archers in general) way more. In origins, you get 3 cun archer rogues (make all of them a bard at lvl 14 for 3x song of courage stack) and shale (rock mastery aura), and just auto attack your way through the game. You do not need to worry about the low health of your members, as they kill everything so fast it is ridiculous. They do not have to deal with any friendly fire bullshit, can disable traps and get items from locked chests (extra exp), and there is no micromanagement because you just auto attack your way through the game instead of selecting spells. Of course, mages can do more raw damage, but archers are absolutely the best DPSers. Oh and as they are ranged, they dont have to deal with the bullshit melees have to.

Oh dont even get me started in awakening. Accuracy speaks for itself. As for the 4th archer (that is not a rogue), make him an archer spirit dex warrior and give him +% spirit damage equipment. Actually, in awakening, archers get even more ridiculous.

Take a look how ridiculous it gets (videos are not mine):









One video for a pure caster mage soloing:

1st time around, 11 years ago, Mage all the way through every game and DLC. Bought the Ultimate @ 75% off and tried it as a Cunning Bow Rogue, never been happier. No doors or locks get in the way and a ton of damage late game, definitely easier as a rogue in some areas, especially the Fade, was a cakewalk compared to Mage. Moving onto 2 next, we will see how it works out.

Just realized that an advantage of Warrior player characters is that they can kind of play themselves if they need to. With a Rogue or a Mage I very easily get stuck playing my own character in combat, whereas a Warrior can just do his thing while I get more mileage out of Zevran or Leliana or Morrigan by micromanaging them.