Mine are:
- Wrong Turn 1-3 (3 being my favorite.)
- Saw 1-3 (Though, 10 was fun.)
- Terrifier 1-3 (These are amazing.)
Favourite would be ones I can watch over and over, like Evil Dead 2, Planet Terror, Drag Me To Hell and The Substance
There's a few I've seen which stuck with me in a different way though, like Eden Lake, Martyrs and The Sadness. Not in a hurry to rewatch, but still memorable.