Grimjack
Because he’d kick even Batman’s ass.
I’ll pick Chon Wang (played by Jackie Chan) in Shanghai Noon/Knights. If he can keep that idiot Roy O’Bannon (Owen Wilson) out of trouble, I’m in great shape. And all with a sense of humor, too!
See, the problem with choices such as Q, Galactus, and Yahweh, is that, yea, these guys are omnipotent or nearly so, but they’re also damned capricious. I’d trust my back to Loki before I’d trust any of those other guys.
Doctor Doom.
What he can’t do with politics, he can do with technology.
What he can’t do with technology, he can do with money.
What he can’t do with money, he can do with cunning schemes.
What he can’t do with cunning schemes, he can do with raw, naked force.
Doom, certainly.
Darth Vader, as an alternative.
oh, i forgot the final steps…
put the teabag in a coffeemaker that’s just been used to make a pot of coffee, then pour the cup of tea, let it get cold, then reheat it in the microwave…
[evil grin]
Don’t Panic, Mika, when i do make tea (not all that often), i use loose-leaf tea in an infuser ball thingy
okay then, if “Q” was out, i’d want Officer Aeryn Sun, special Peacekeeper commando, Pleisar Regiment, covering my back, with Ka’ D’Argo as backup…
Nobody wants Angel? Is it just because he’s so damned pouty, or what?
I’ll take the Saint of Killers. Sure, you guys have dibs on the reality-bending characters like Dr. Manhattan and Galactus, but my guy is just plain meaner.
Zorro. Tornado will take care of Kathy Lee.
that, and he doesn’t know how to accept gratitude
btw - if *Buffy * can’t cut it, I’ll dump her for Spike
Bah. Kathy Lee would so pwn his ass. 
Except he’s probably the one who sicced everyone on you in the first place, knowing Q.
You forgot magic.
YOU DARE TO CRITICISE DOOM!?! INSOLENT LACKEY! DIE!!
< Insert 1920’s Style Death Ray Noise Here >
For more-or-less-real-world-humans, I don’t think Jack Bauer is a good idea, as I’d be too tempted to hit on his hot daughter (or his annoying techy sidekick), and then I might get Bauerized. I’d have to choose Bob “The Nailer” Swagger, or his father, Earl Swagger.
For non-omnipotent fictional characters, I’d go with prequel-era Obi Wan Kenobi.
It’s that nancy-boy hair gel he likes so much.
besides - he’s really just a wee little puppet man 
The baddies might try to whack me outdoors in the daytime.