PS3 has the most power, so they might want to go for it, but I think Lorne remembers what happened when you develop for a console that's too expensive and not enough sold.
The Wii is all over the place, I agree, but will people buy an Oddworld game on it? I'm not too sure about that (of course YOU will, but you are a fan, aren't you). I've read somewhere that for 1 Wii sold they only sold 2,5 games. The Wii is a nice console but I'm afraid it lacks power to be able to support Lorne's vision.
Finally don't forget that a big part of their fanbase continued to follow microsoft even after they broke the Xclusive deal. I know I'm still playing on Xbox(360). Plus it has decent power and a good online platform, which would be good as we know Lorne wants to do some MMO lite games and perhaps episodic content.
And of course they shouldn't neglect a pc release a bit later (I say later because if they release it at the same time people won't brother to buy the console versions they will simply download a cracked pc version, it's how it works). PC is forever and people that don't have the specs to play it now can still play it later, without having to buy an obsolete console (we all know people over here that buy old xboxes only to play sw and mo).
Actually anything is fine to me... but I still think multiplatform with a pc release a few months later might be the best solution.
But please no PS3 exclusive, I don't want to buy it.
Sony and Oddworld
