I think Hull will go down, I don't think their squad is that good, or their manager. I think Portsmouth will fight hard, and pick up points, and help create a good relegation battle, but I think they will just go down. As for the third team, my opinion is it could be either Wolves, Burnley, West Ham or Bolton. I think Wigan and Blackburn will be comfortably safe.
I think Bolton, because Owen Coyle is their new manager, will improve and keep away from the relegation places. I think it will be very tough for Burnley now, but I reckon they'll just scrape enough points to survive. They've got a decent team and if they get a good manager in they will be ok.
West Ham have got a considerably better squad than any of these teams, and they have a decent manager. I can see them recovering, their players starting to perform more, and produce the results needed to stay up. I expect their players to play like they have done in previous seasons in the second half of the season.
So, that leaves Wolves. They've got good players, they won't go down easily, but, I think they are just lacking that little something from the other teams, they'll just go down. They'll certainly keep going to the end though. I think maybe not scoring and creating enough goals could be the reason why they are relegated.
So, to sum up, I think Portsmouth, Wolves and Hull will go down :).