My Favorite is the desert Ranger armor its even better with the ADAM Reborn re-texture by MonoAccipiter - VT08and its even beter with the Desert Ranger Armor Retexture for ADAM MODE by Mika999.

I'd make two categories of armor, since power armor is now a mechanized suit powered by fusion cores...

Regular armor wise, I'd say the Desert Ranger's armor is my favourite.
As for power armor, the t-60 power armor feels so badass and bulky... It's like what the t-45 should've always been. Despite that, I'll go for the t-51. Looks like the best one. Not that bulky, more stylized, feels like the powered armor technology pinnacle it is.

For Vanilla its just the Armoured Vault suit (101 and 13)

It looks so simple but still badass.

Modded would be the Tough Traveler with the robotic leg

Vanilla wise I have always liked wearing the Desert Ranger Armor and my favourite Power Armor is always X01 because I really do like the enclave.

I suppose for vanilla it would likely be the Elite Riot Gear from the Lonesome Road DLC of Fallout: New Vegas because it's both cool (it has a pretty military appearance and I like stuff that is military), and is a pretty good armor.

For modded... I don't use that much armor mods. But for now it's the Dragonskin Tactical Outfit (it's because I just came from the Nexus so sue me =w=)

Hellfire Power Armor. It looks like the Enclave bargained with the devil just to stop mutants.

My favorite armor is definitely the prostitute chain outfit from new vages

@drumpftardsBTFO Good taste, have you seen that thing on Easy Pete? Sunny Smiles ain't got nothing on that thicc boi

Honestly, it's Midwestern Advanced Brotherhood Armour from Fallout Tactics since it beat the Enclave to the Devil aesthetic and the ripped Brotherhood flag as a cape is just awesome.

From Fallout 3, I'm torn between the Winterized T-51b and the Chinese Stealth Armor, both do wonders for me.

From Fallout: New Vegas, the Desert Ranger Armor, the NCR Veteran Combat Armor or the Elite Riot Gear, I personally dig the military feel from the helmets.

Chinese Stealth Suit beats them all!

I got to say the T-60 power armor. I love the look, but dislike the lore.

The Desert Ranger Armor is so iconic to me. Whenever New Vegas first came out my dad got it fresh off of completing Fallout 3 (i was only 8 or 9 at the time) and I just remember absolutely loving the armor on the cover. Whenever I would play it I would just walk around thinking I would find it somewhere. And then after that remember looking up "how to get new vegas cover armor". After that I would go to Camp Golf and attempt over and over to kill an NCR Veteran Ranger just for their armor

Elite Riot Gear by far, looks great and functions awesomely.

I'm not too sure on modded gear as I've used so many modded armours, but that drag mod that changes all the New Vegas and Fallout 3 armours to their Fallout 4 models and custom models is pretty fricking fantastic. I've been loving that so far.

Maxson's Battlecoat looks really cool

Since I'm playing Fallout 3, New Vegas, and Fallout 4 simultaneously while waiting for The Long Dark's download to finish...I can say that my favorite non-power armor armor in each games are:

Fallout 3: Ranger Battle Armor (Full set) w/Ledoux's Hockey Mask; really amazing stats while still being killable

Fallout New Vegas: Ulysses Duster w/ Marked Beast Face Helmet; great combination with pretty nice stats for a Lucky Ninja Build (which i go for all the time)

Fallout 4: I don't really know the specifics since this game doesn't have true unique items, but I have a mixture of The Pack armors and once again its a Luck Build, but this time focusing as a mobile sniper.

Playing on vanilla really shows how great these games are on their on.

I really like the Riot gear from New Vegas, and Grognak's costume form Fallout 4. I'm just a huge Conan fan, and Grognak is pretty much a Conan "parody". So...yeah.

Definitely the Leather Armor set from NV for me. I love the Mad Max look.

Got a couple of favorites which would be the Elite Riot Gear, Combat Armor(from 3 and NV), the assassin suit from Dead Money, and although this is more like clothing, Daniel's Outfit since I like the look of it for some reason.

Definitely Mercenary Troublemaker, it's always my favourite armour for early game in Fallout 3 and New Vegas.