Well, the first three answers are easy: GOW will get higher reviews and hype (just because usually ps3 games have more hype than Wii games), and also more preorders (ps3 games listed in top 40 american preorders are something like 10-20 times more than Wii games...).
But for sales first week/LTD is an hard question: if Wii reaches 100 millions before Pikmin 3 (=no before holiday 2010) then it has a great shot to outsell both the previous Pikmin combined (about 3 million LTD) if Ninty is able to do the same thing they did with mario Kart: casualizing it without screwing it. But GoW has a bigger fanbase, and is a more known franchise, so it will probaby be the best entry in the franchise...and as long as PS3 games usually don't have legs, i would say that a lot of it's sales will come from the first week, so Pikmin has a shot just to the LTD question IMO.
CURRENTLY PLAYING: Xenoblade (Wii), Super mario 3D land (3DS), Guild Wars (PC)
