So what is your guys personal favorite armor from any Halo game/Halo Universe?
Myself, I love Mark V Armor in all variants. Personal Favorite was Halo Reach Mark V helmet. I do love the Noble armor in H5 for giving me the look and feel of the classic armor sets.
Mark IV halo wars
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> Mark IV halo wars
Same
Either the hunter set in halo 5 or the commando set in reach.
Mark V, Halo Reach. Best collectible/customizable figures too
hunter set or mark vi
Hunter - Halo 5.
H3 - Hybusa set/Security shoulders/Recon
HODST- ODST helm
H4 - Mark V
HR - Liked the vast parts to customise
H5 - …
Mk V from reach. Noble Six’s helmet has always been my favorite, and the Reach armor does has a semi classic look to the first armor considering that it takes place in the same timeline dating back to Combat Evolved.
Oceanic Halo 4
jk jk
Rouge - Halo 3 Helm (May be sentimental bias here)
Teishin - Halo 5
Honourable mentions to Recruit, Hyabusa, Security (Halo 3,5 not Reaches), and the ODST (halo 4, Except the helmet)
Hard to say…I always liked the Commando helmet in Reach (still rolling the dice for Noble here…)
Probably Hayabusa or the Mark VI
Helioskrill is really growing on me.
EVA in all games.
My favorite is the GEN2 varient. Real sleek.
Flames from HR. Not really armor but I like anything animated on my character.
Wetwork helm is my -Yoink-
A little sad some of my favorite helms are not in H5, CQB, EOD, JFO, Reach’s Operator, among my most missed.
Give me the H3 scout helmet & I’ll play naked.
Mark VI and Mark V for me !
But I love also the Recruit, Recon and Scout armors 
The Arbiter-like armor is pretty cool too.