Well I got the full sets of [green] type armor on all Titan, Hunter and Warlock (next level above common, but highest possible to wear in the Alpha.. though I got [Blue/purple]-Rare gear, it is Lv.10+ :\) They all have like a camo look to it, with various color schemes, so that will probably be the difference armor wise.. I think the rarest things are like the Class specific items.. like the Cloak, Arm Band, Satchel.. the NPC refreshes like every 1-2 hrs I believe, so some times you may possibly never see that same item again, or not that same color scheme/design for a long time. My favorite armors so far has to be the Faction armors.. those look more unique, sadly you won't be the only one with it, but it looks cool.. The tower only shows us the Dead Orbit, New Monarchy and Future War Cult areas.. but since I already wanted to be Dead Orbit, I guess I am bias to their gear.. I just dislike how their area is in a dark corner in the back where the boxes are.. while the other Factions have lounge and couch areas.. but New Monarchy definitely looks cool.. like royalty. But based on the small descriptions on the gears, I can gain a light idea what those factions are about and I am still leaning to Dead Orbit, unless Seven Seraphs turns out to win me over. Anyway, I'm starting to ramble here... Sorry I don't have a screenshot on hand, but thought a description would be better than nothing :)