I'm being objective here. Looking at the run-in, Man U has a very very tough one. Next 3 games esp. First, Liverpool (home), then 2 away games at Arsenal and Newcastle. Then Blackburn. and so on. Final game at Everton. Majority top 10 teams. Likely to lose points here and there.
Arsenal seems to have upper hand. Much easier run-in. Only crunch match next week vs Man U, but may not be championship decider match, as explained above. Somemore, no more CL, can concentrate on league.
Newcastle, I think has the easiest run-in of the three. Who knows, they may just pip Arsenal at the finish. But the gap now is a bit too much to overcome, given the number of games left.
Btw, I voted for Pulau Ubin United. Can't resist it!