Last game of the season

With Man City and Man Utd on level points before their final game, who will win the Premier League?
I think both teams will win their respective games, although Man City opponents (QPR) with their former manager, Mark Hughes may try to upset the game by playing defensively as Mark would prefer Man Utd to win the league.
And with Man Utd opponents Sunderland playing to end their season, I feel Man Utd will have a better chance of winning their game.

With third and fourth place still undecided for the European Champions League position still up for grabs. Who will get the two spots? Considering if Chelsea win the final, the team in fourth spot will lose their position (unfair?). Newcastle has a tough game away to Everton and if they win, they may get to 3rd or 4th as I see a slip up with Arsenal or Tottenham with both these teams struggling to win games.

And then we have the final team to be relegated. Will it be QPR or Bolton. QPR having to avoid defeat at Man City, or Bolton to beat Stoke away.

To be honest, I do not know what to bet on. The final game could affect all the players differently, and the games that have no value, could go either way.