Also, I have Nude Nuns With Big Guns, but I haven't yet watched it. And I was mostly bored by I Spit on Your Grave. The scenes in Cannibal Holocaust with the animals getting slowly killed were worse than the scenes of people getting murdered because those were real. And I remember that guy in the wheelchair in Texas Chainsaw Massacre. poor guy. I thought Jackie Brown was meh, and I found that watching Death Proof once was enough, mainly for the payoff at the end. It didn't do much for me a second time.
And Superfly, lol. That speech at the end.
Anyway, I guess I'd go with Machete and Planet Terror. But that Wikipedia article also included the Lone Wolf and Cub movies and those were awesome. And if you count Drive Angry, that movie was actually badass. I guess I can't be completely sure if certain movies count in some cases, unlike several others like the Troma movies and the like.