I dont remeber asking you A GOD DMAN THING!

Good, intense actor, but a bit too ubiquitous for my taste. There doesn't seem to be a role offered to him that he says "no" to. First saw him in Spike Lee's "Jungle Fever" where he burned up the screen as a junkie. A friend of mine used to jokingly refer to him as "the workingest man in Hollywood." I remember watching "Goodfellas", shaking my head and saying to my companion, "Geez, isn't that Samuel Jackson? He's on the screen for all of 2 minutes! They could've gotten anybody to play that part!" My companion offered, "Maybe he figures he better make all the money he can as quick as he can." When he's good, he's great. He was the best thing about "Jackie Brown" and in "Pulp Fiction" he made an improbable character probable. Still, he seems more than willing to appear in an enormous amount of formulaic Hollywood crap, and I have to detract a star for that. I understand it's a job and he has to make a living...and, let's face it, 80% to 90% of what comes out of Hollywood these days seems to be formulaic crap...but it's depressing nonetheless.

Cannot easily dismiss the persuasively dangerous amorality of his 'Ordell,' the gun-trafficking character from Tarantino's 'Jackie Brown.' His relationship with the Robert DeNiro and the Bridget Fonda characters is realistic enough to be disquieting. Must have been a fun experience for Jackson.

As much as I agree with the below statement, I can't recall any films in which Samuel L plays the villain aside from the disastrous (or so I heard, I never saw it myself due to fear of Hayden Christensen's excuse for acting [see 'Anakin Skywalker']...) 'Jumper', in which he plays the whiny guy's nemesis. Other than that, he always seems to play the heroic or flawed (Willis-esque) hero, such as Neville Flynn, Mace Windu or Lt. Roman (from Snakes on a Plane, Star Wars and The Negotiator respectively). Of course, in Pulp Fiction there were no real villains, so I'm not counting that, even though that was possibly the highlight of his career.
Update: I just remembered his excellent performance opposite Bruce Willis in Unbreakable as the [eventually] handicapped villain Elijah Price, which was absolutely brilliant.

I'll see anything Mr. Jackson is in.