Some of the stunts in Project A with Jackie Chan were the best I've seen, ever. Supercop's fight scenes were just crazy. I think Jackie really shined in that one. The choreography in Legend of the Drunken Master was perfect. For the old school I go for The Streetfighter with Sonny Chiba. Master Killer was a classic and Enter the Dragon is a personal fave. I wish Bruce had a chance to finish Game of Death himself. I think it would have been the best kung-fu movie ever.
CTHD, Hero, House of the Flying Daggers and other films like these are Wuxia films, so nothing wrong with all the fighting and scenes against the laws of physics and so on. Very big in China these type of genre films. Very magical to watch, visuals.
Ong Bak was good for the action scenes, but didn't like the editing and the rest of the movie was awful, didn't like that.
Who Am I, my brother worked on effects/action scenes in this Chan movie, met Jackie as well.
Love watching Jet Li, Bruce Lee, Jackie Chan, Michelle Yeoh and most others mentioned already.