Personally, i'd still go 360. I really love Bio-Ware. They are my favorite developer. KOTOR is one of my Top 3 games ever. They were the determining factor in me buying a 360. If I didn't care about Bio-Ware and both system were $299 and didn't include any games in the box, i'd go for a PS3 10 times out of 10.
As for 360 or Wii. I don't know. I'd go for 360 because of Bio-Ware and the price. Plus it has my favorite fighting game ever: Marvel vs Capcom 2, which can fit on the internal memory of an Arcade unit.
If the two cost the same price and I didn't own either already... I don't know. I love Bio-Ware but right now there are Wii games coming out that I really want to play than 360 games. From what I know about the future 360 releases, the only games i'm seriously interested in at all are Alpha Protocol, FFXIII and Mass Effect 2. Wii has Fragile, Silent Hill, Muramasa, Tatsunoko vs Capcom, Metroid Other M, New Super Mario Wii and Mario Galaxy 2.
