Let's look at the candidates:
Chavo Guerrero
I think he's more liekly than anyone thinks. It wouldn't surprise me, but let's just say he's there is they want to push him.
John Cena
If he's able to return, I think they'll use him. Cena & Carlito have some heat, and Carlito pinning and re-injuring Cena would garnish heaps of heat. Maybe Jesus can wet his chops? I wouldn't mind seeing Cena steal Carlito's US Championship (not legally, just the belt). He's my pick, just becuase he seems to have the backstory.
Josh Mathews
Wow, I didn't even consider this guy when thinking about it earlier. He's actually got a good chance. I can see this leading to heat between Mathews and Mysterio, maybe with a feud over the CW Title down the line. Mathew sis a logical pick, IMO.
Hardcore Holly
I can see him being in it. That's sad, because although I like him, he's really got no purpsoe being in there storyline-wise.
Triple H
LOL! Actually I can see Eddie Guerrero getting Chris Benoit in. Or Dean Malenko. I would mark out for either of them. A RAw superstar would actually be quite interesting, becausre the win would officially go in the SmackDown! record book, so Theordore R. Long wouldn't mind, and with Eric Bischoff not exactly enforcing rules lately, it would make sense. Benoit (if it was him) could get into heat with his team, if they lost later on that night.
Al Snow
Another interesting choice. I could see it happening. Or maybe one of the contestants could win a challenge on SmackDown!. I'd rather see it Al Snow, Bill DeMott or a previous contestant (Matt Cappotelli, Matt Morgan, etc.).
Big Show is big enough for two people
Nah, I'd hate this scenario. It builds up Big Show, but it also makes the heels look like crap if they lose, and makes Big Show looks like crap if he loses. Maybe if they had a match, with their "forces" cancelling each other out, then Eddie Guerrero announces that there is a fourth member of his team. Out pops Cena, the crowd would explode, and Big Show would look credible.
Chris Benoit
A good pick, that's for sure. I would like to see this happen, just because it opens up storylines on RAW.
Funaki
I would like to see this. If they're trimming down the rosters, and aren't releasing this guy, why not use him?