Question for the Vitabros:
Do you own a 3DS in addition to your Vita? Which to you end up using more often?
I play whichever indiscriminately, but I must say that I couldn't stand the original 3DS (physically painful). Now that I've upgraded to an XL, playing games on that platform is a lot more pleasant for me.
My Vita will likely get most of my attention until Fire Emblem, Etrian IV, or (hopefully) SMT IV come out. There is literally nothing else currently announced for the 3DS next year that I'm interested in besides maybe Smash Bros. or MH4 down the line. I adore the DS Castlevanias, but the new one looks awful, and games like Luigi's Mansion, Animal Crossing, and that horrible Mickey platformer that just got a demo do little for me. Tri G will be a Wii U purchase because of its internet connectivity.
Kid Icarus: Uprising may very well be my GotY in 2012, though, so it's not like I feel the 3DS doesn't already have some quality software on it or anything.
How do these games look on Vita, anyone own them?
I own a few of those (SFA3 Max, Yggdra, Knights, UGnG) and think they look far better on Vita than PSP. The only PSP games I don't think look that spectacular are the heavily dithered ones, but, even then, they still look better than they did before due to the OLED. I was worried most about 2D games being blurry or whatever, but they look great to me. Anyway, beyond that, the better buttons/d-pad/stick and response time make PSP games so much better on the Vita.
As for recommendations, I only would suggest staying away from Sting's games (Riviera, Yggdra, Knights, Gungnir) unless you know what you're getting into. I think Yggdra and KitN are terrible, and you have no idea how much I wanted to like them. Evolution 2 (not on your list but another Sting game I played on Dreamcast) was also pretty atrocious. Because of these experiences, I don't even want to touch Riviera or Gungnir.