Many people don't really count this as a good Jason movie, but I find it to be the best one.
He may not have the "famous" hockey mask. No, instead he uses a pillow sack (or something like that), he doesn't get the mask until the next chapter (part 3). This film is quite similar to the first, but it isn't as boring and slow. It gets pretty straight to the deaths. The film starts us off with the girl who survived from the first film, and we see Jason getting her own back on her, for killing his mum. I think that can be quite a creepy scene, when we see Jason's mom's head in the fridge. Then the film heads five years later, and a set of new kids are heading to Crystal lake. Once the first teenage dies, it just starts to get freaky and scary.
The film probably does have a bit more nudity in it, but still now much. As we do get on the first film, there is quite a chilling chase sequence within the last 10 minutes of the film, with Jason chasing a teenage girl (of course). The chase stretches out quite a bit and can become quite scary. Until we come to the end, and we get quite a jumpy, freaky twist at the end., like we do in the first film's end.
So, in my opinion, the best Jason film. Other good Jason titles are: