Coming from a huge F13 fan, i absolutely HATED it.
The plot was so incredibly dumb. Jason body hopping, the magic dagger, 'only a voorhees can kill a voorhees', the demonic worm thing etc etc etc made the movie so fucking awful.
Plus we don't get to actually see Jason as Jason except for the beginning and a tiny bit at the end. I remember the director saying he wanted fans to 'miss Jason so that when they get him back in the end its like a huge present.' So we get to sit through an hour or more of his shitty plot and garbage script only for Jason to come back for a handful of minutes in the end.
If you like it, fine, all the power to you. But IMO you'd have to try really hard to make a shitter F13 movie. Jason X isnt perfect but its leagues better than this.