Season 4 because Spike was in it a lot more.

My Favorite Season's Are 2,3,4 And 7 I Also Love Them The Most I Don't Like 5 And 6 For Obvious Reasons:-)

Season 3. It was a masterpiece. Definitely not later seasons since they annoy me. I pretend they don't exist.

I’m only up to episode 18 of season 2 but I like it more than season 1