Kratos and Sweet Tooth have just been confirmed as rivals. On the "Ultimate Match-Ups" thing on the game's site, it has the two of them in a position that has them attacking each other, implying that.
A while back, a picture was leaked of Cole and Raiden in a similar rival-like embrace, done the same way as the Kratos/Sweet Tooth picture. Is it fair to guess they'll be rivals?
The picture, for those who don't remember: http://images3.wikia.nocookie.net/__cb20120810002927/metalgear/images/thumb/a/a7/Original.jpeg/185px-Original.jpeg --- I am the Box Ghost. Beware. http://25.media.tumblr.com/tumblr_lqz6jrOvvK1qd3p2to1_500.gif
Maybe, but might have changed. The site isn't up to date at all, so they may or may not still be rivals. --- ~Getting PSASBR at launch, no matter what~ PSN:Rain_Bow_saurus|XBL:(Coming Soon)|Wii/DS/3DS FC:Message me :D
Sweet Tooth and Kratos were created by David Jaffe. But at this point I don't wouldn't really know the reasons. We've been getting a lot of hints that R&C and J&D will be rivals rather than J&D vs Nathan Drake.
--- Because Naughty Dog Joel+Ellie=Jelly...You Jelly?
Due to both been from Sucker Punch I'd say Evil Cole and Good Cole will be rivals.
Going by what we know so far:
Nariko and Dante - Both Ninja Theory Sweet Tooth and Kratos - Both from David Jaffe. Heihachi and Toro - Both Japanese? Big Daddy and Sackboy - Random
Unconfirmed Jak & Daxter and Ratchet & Clank - Random Spike and Parappa - From the Voice acting things.
My guess after that would be:
Fat Princess and Sly Cooper - Sly steals some cake fat princess looking for. Raiden and Radac - Radac is looking for a cyborg to help him in the war and wants to use Radien. Sir Daniel and Nathan Drake - Drake is looking for relics/treasure and finds Sir Dan. --- One who knows nothing can understand nothing - GamerTag: wwinterj/PSN wwinterj