I don't know if this is fair to choose anyone. Nearly everyone did their thing in their own department. Stone Cold was definitely the one I wanted to see the most. I hang on to every single word coming from his mouth and when it's done, I'm hungry for more. Every single segment was excellent (CM Punk, The Miz, Vickie/Dolph, appearances on the large TV, final segment and feud with the anonymous GM's computer) and never did any of it feel forced. Austin is one of a kind and I really hope he appears more frequently. Forget about The Rock, Steve Austin is the man in terms of Attitude Era legends.
Then it's CM Punk that's talked about a lot here, his fueling of the Rey feud was well done, his match with Cena was great and the Austin promo yells for an actual match!
Then we also have R-Truth. At first, I felt his attempts at heel heat was forced and doing whatever it takes, but now he's naturally make me wanna hate him even though I'm still behind him in terms of support. I love the whole 'conspiracy' angle and the 'little jimmy's'. He's hilariously funny and the way his attitude is, it almost demands a change from the PG era. I really hope he scores a win over Cena by messing with his fans. I find these little kids so annoying, I wish Cena would just turn on them and show he cares more about the belt than little kids cheering him. Hearing them yell "[heel wrestler name], you suck!" makes me wanna punch them in the guts. And this is coming from a Cena fan.
And The Miz was golden on both segments with Roddy Piper and Stone Cold. Austin totally put him in his place when he bigged up Riley for having the guts to actually attack Stone Cold instead of running out after a cheap shot.
And he's mostly forgotten, but Christian was excellent on his live TV appearance. Hearing him ask "who wants Christian face Orton in the ring" and then telling them he doesn't care about what the crowd wants made me laugh out loud. Orton also sold his frustration to perfection, too bad he had no match but I understand that since he said on twitter he was "knocked out".
This Raw was simply amazing and for a 3 hour show, even better than what every other episode has been in a long, long time.