I always liked him, probably more when he was with drusilla and evil. But he was still good in season 5-7, just not quite so fun.

i loved spike the minute i saw him! i was really excited cuz my friend who saw the show before me told me that spike was way cooler than xander or giles or angel! i probably liked him the least in season 2, i liked him best in season 4, 5, & 7.

I liked Spike the minute him and Dru roared into town and crashed the "welcome to sunnydale" sign.... i was excited. There was new hot meat in town to take over with a crazy women who is the best vampire i have ever seen!