Which Mass Effect game has your favorite gear?

ME3 cuz' Ajax armor (with N7 paint) & Lancer.

I voted ME3. It has the best and possibly most guns and some sleek armor. I just wish I could unlock all that cool armor sooner (no new game plus for me). ME2 has heavy weapons aww yeah. 1 has some neat armors and I like the Russian manufactured weapons. Andromeda has some really cool armor as well.
I am talking about aesthetics here nothing more:
Best guns and armor = ME3
Cool armor ok guns = MEA
Ok armor gnarly guns = ME2
Ok armor and ok guns = ME1

The console commands in ME1 do have some neat armors.
I say gnarly for ME2 due to the heavy weapons and punch of the mattock and revenant before they were nerfed in ME3. There isn't a ton of armor in 2. I like it, but it isn't as varied as 3.
ME3 has the harrier and typhoon and lots of other cool stuff.
MEA allows you to mod weapons much more extensively. Aesthetically some of the weapons can be a bit fugly but they still make dead Kett

Also ME3 began allowing helmets off in conversations. What a simple but cool option to add.

Yeah, I don't like how it gets bulkier between tier 1 and 5. Wish those looks were actually different armors, or at least let you choose which one you want to use.

Weapons: ME2
Armor: ME3

This is the kind of shotgun that ME3 should make designs of. And they should've have a gunsmith/crafting system to customize and modify weapons.

I'm pretty sure I've gotten Onyx X armor at some point... not that I would have chosen to wear it regardless.  Loved the Predator LMH series.  In ME1, I liked that I could dress my entire squad as a team... all in the same brand of armor (except for Tali who didn't have a version of the Predator LMH stuff).  If I wanted to make Shepard different to show rank, I could do that as well... usually then I would put him/her in Predator LMH and the rest of the team in the regular Predator stuff.

I don't think it has to be NG+, but I think you have to get to at or near Level 50 to start seeing it and I don't think it's that common.  Pieces of Predator LMH, on the other hand are available through Shepard's Apartment (if you have the Pinnacle Station DLC). 

There is something, however, to be said for not making the commander too obviously the one in charge since it does prevent the enemy from targeting the one in charge.  I always felt though that a military-based squad should dress as a squad and never liked the fact that the NPCs in ME2, 3 & even ME:A are all dressed individually. For example, Liam and Cora, for example, as part of the initial and official pathfinder team should at least start out in exactly the same gear as Ryder. I see no reason why they would all have different styles of hard suits and helmets at least at the outset since they haven't had any opportunities to start personalizing their stuff yet.

Mostly though, I just didn't like the plain grayness of the Onyx stuff in ME1.. I preferred the camo.  I would just roleplay that my Shepard never felt much of a need to boast about being N7 trained and special ops types are to be somewhat secretive anyways.