Halloween 2 hailed by many as the best of the bunch. Also, I have found memories of watching this one Halloween night at a sleepover after a night filled with trick or treating! I also remember a few of those kids could not handle it.
I will admit it Halloween 2 is one of my favorites of the series as well. I think because the jump scares are in your face and the deaths are a little more creative. So if I could only watch one I would grab this one.