Before I received my 360, as a proud Wii owner I just wanted for 3rd Parties to make good games designed with the Wii in mind and not try and compete with the power of the 360 or PS3. Rockstar almost made a good effort with Manhunt 2 (I know many people will completely disagree with me here). If they had cleaned up the game and took out all of the buggyness it would have been an astounding game. My roommate and I played the hell out of it and had a great time. Unfortunately the game must have had a low budget and they left in more bugs than a usual Rockstar game.
If I still only had a Wii I would still feel the same I would not be asking for the Graphics of a GTA4 or MGS4 or RE5, because I knew that I would not be getting that when I bought the Wii. I would be asking for PS2+ Graphics (Which although I enjoy the nextgen graphics I am still satisfied with the PS2) with invoative, emotion inducing games built to use the specialty of the Wii.
I said emotion inducing because I am not solely looking for 'fun' games, I also enjoy intense games (Silent Hill), frustrating games (Super C - I have died so many times on that first level and still can't get enough), etc.
Rockstar has tried a few times, but as far as I have seen they haven't put a real budget behind trying to make a blockbuster Wii game yet.
I think if 3rd parties try they can find great success in the Wii. No they will not get the whole user base, though it looks like Boom Blox will try to, but the Wii base will be so large that if they put some marketing behind a quality product it will sell.
