Favorite part of the main quest.

the quest does feel poorly written, but my views on this game's writing are well documented by now

Specifically though, I think the Inquisitor going out to buy the others time to flee is the silliest moment in a quest that full of ridiculous and foolish moments (I don't include the singing scene, because its so hokey I've never actually listened to all of it). I just don't see why they would send the least expendable person, not just in the organization, but in the whole world out to certain death. The plan is to fire that Trebuchet, but how is the Inquisitor even qualified to do that? Firing artillery (especially if it needs to be aimed and ranged), is no simple matter.

And even if it were to succeed, if the Inquisitor dies (as Cullen and your character seem to agree you probably will), would that not be the most utterly pointless pyrrhic victory? You'd save an army that would then be completely unable to do anything about the Fade Rifts, thus dooming the world to at the very least constant demonic attack (and that's assuming the Rifts don't get larger or start to exert more destructive effects on the area around them). All for absolutely no purpose, because the job you are doing (slowing the enemy advance, firing a war machine etc) could be done by any number of people in the Inquisition's army. Hell, Bull and the Chargers could probably do it by themselves, and with the likes of Rocky around, they'd be more qualified to fire that Trebuchet than you are! Or is Trebuchet 101 standard teaching in the Circle nowadays? Do the Dalish practice artillery drills, do you think?

Its a naked case of 'We'll go out and save the day, because we're the heroes!' even though it makes absolutely no sense for you to be the one doing this (especially as you've been told that the enemy is here for you, and thus heading out in such small numbers straight towards him is hardly a wise move). And indeed, this 'plan' goes about as well as you'd expect. Right up until the villain suffers a last second attack of idiocy, he had things well in hand. He'd taken out your squad, used his magic to neutralise you, and instead of just shouting 'Cop this!' and obliterating you, he decides to go all Mr T and throws you instead - straight next to the Trebuchet he hasn't destroyed with his Dragon or magic because... er... Well anyway, he decides that instead of crushing you like a grape, he'll throw you next to the firing lever. Because its not like you've already used a Trebuchet on the mountain to tip off what your intentions are... oh no wait, yes you have...

The whole quest is utterly ridiculous. Its particularly insulting when the artillery crew range and prepare the first Trebuchet, set everything up and then stand there like lemons shouting 'Pull the lever!' or whatever to you. Then everyone cheers and showers you with praise and bodily fluids over 'your' glorious tactics... Bioware games are full of this player pampering nonsense, with your character being praised for actions that other people took.

i never did those. Even once.

Nope.  Just didn't be bothered to try and look that one up.  Heck I only looked up the Astariums I needed to get that Super Fire Rune.  Oh well maybe one day. 

Iron Bull's companion quest if you romance him
Wicked Eyes Wicked Hearts onwards is great, because that's where I feel the most connected to my Inquisitor.
I've made friends, enemies and possibly a lover, and I've also made progress, and the finish line is just around the corner.
There's a scent of bittersweetness in the air, that this Inquisitor has almost finished their journey, and soon Trespasser is upon us and that's the end.
But... I feel as if when the game ends, it's the start of the more interesting part of your Inquisitors journey, and you can headcanon and keep on creating their story more freely. And it's also a start of a new, interesting Inquisitor, and that's always exciting to me.