Probably my favorite is Sword of the Serpent. However, I don't know if there's a way to find it on DVD with the English dub if that's your cup of tea. I have an old VHS where it has dubbing & subtitles.....& neither of them match! If you want it on DVD(or maybe Netflix?), there might be a version that has subtitles called The Sword Stained with Royal Blood. Whatever language it's in, it's great. Very over the top in spots.
Some that are considered classics are Master Killer/36 Chambers, 5 Deadly Venoms, Shaolin & Wu-Tang, Shaolin Drunken Monk,
Virtually any movie with Gordon Liu or Sam Seed(always plays an old drunk kung fu master) is great. Shaw Bros. movies are usually hailed as being good to awesome.
Other ones I like are Chinese Super Ninja, Gorgeous(Jackie Chan, not a lot of fighting, but good none the less), First Strike, Operation Condor(there's a prequel, but I prefer this one), Ol' Dirty Kung Fu. I'm mainly citing movies I own. There's too many movies that I've seen over the years.