As a West Ham fan its a certainty. Win away at Arsenal, Liverpool, and Man City. Defeat at Sunderland is inevitable. Take the 3.2 while you can.
On the other hand West ham are outstanding away from home and Sunderland would probably be bottom of the Championship if they were in it. 2.44 is one of the best value bets you will see all season.
In other words I just don't know. All I do know is never ever ever bet on a game involving West Ham.