You can revive one famous person...

[Wuvlycuddles]

Revive: George Carlin. Kill: Jeff Ross.
Revive: Bill Hicks. Kill: Whitney Cummings.
Revive: Graham Chapman. Kill: Dane Cook.

The world would become infinitely funnier rather quickly.

Ninja'd!

But also want to add:
REVIVE: Richard Pryor. Kill: Martin Lawrence
Revive: Hunter S. Thompson. Hmm, maybe not a good idea to revive someone who killed themselves... so TOLKIEN! Kill: J. K. Rowling
Revive: Stanley Kubrick Kill: Michael Bay


I'm goin to stop here because I could go for days....