Gintoki took a strawberry milk from my fridge.. True story.
If this is a serious battle + all toonforce on.. Gintoki wins, he copies another series' characters, do their best moves, best of all, he destroys the series.. Besides, who else have their balls fight each other? :D
BUT, He's afraid of spiders.. xD
I'm a big fan of both characters. I never read a Deadpool comic series. Only saw him in the animated series, I think Ultimate Spider-man with Steve Blum voicing Spidey.
Deadpool got some serious regeneration, and decapitation won't stop him. Haven't seen lot of Gintama either. Just started Gintama after the Sket Dance crossover. That was my gateway into Gintama. Got to go with Deadpool here.
Let me know about Gintoki and Deadpool's facts and feats. I wouldn't mind being corrected.