I think Bale can do good wherever really, just not 100 million-good. But Tottenham will be a force to count with if they hold on to him, and no matter how good Wenger is, he needs reinforcements. They will always be a top-4 threat no matter what though..
Right now, I'd say Chelsea and City are the two teams that stand out. United got the winning mentality in their squad, but individually I don't know if they're good enough, especially at midfield. With Ferguson gone, I see them pretty much equally to Spurs, Arsenal and Liverpool assuming they got at least a somehow decent replacement for Downing (ie: not worse than SD). I might even go so far as to say that Tottenham is perhaps the better of them.
Still plenty of time for players to come and go though..
A Tribe fan that appreciated the classics
But damn if I'm trapped in the past, I act to surpass what they crafted
and still manage to travel the path on the maps that they drafted