Originally Posted by Achren
Jason Nesmith. Quoted somewhere on the SDMB as out William Shatner-ing William Shatner.
I'll give 1970's convention circuit Shatner the advantage over his spoofy doppleganger in that case. Shatner had several action roles and was in pretty good shape despite the pudge factor.
On the convention circuit I give the edge to Shatner, he actually has a good sence of humor and good comic timing in telling jokes.
For acting, I will of course give it to Nesmith, Tim Allen isn't a good enough actor to make Nesmith as bad an actor as Shatner.