PES has always, always boosted the stats of English players, or anyone playing in England - especially if they play for the England team, which Konami somehow seems to think is one of the very best in the world. Never understood this. I can remember editing/updating PES6 not long ago, and there were English guys there I've never even heard of, 18 year olds from the reserves of Birmingham City or somewhere (who've gone on to do nothing in the game since PES6 was released) with better stats than first-teamers from Valencia or Lazio.
Ideally, these kind of very ordinary English players should have higher stats for tenacity, mentality, whatever, body balance and possibly aggression. Tough to play against, but not great technical players. Instead you had flops from Bolton who were better technically than anyone in the French league who didn't play for one of the top three French teams. It's like Konami could appreciate that the Premier League was a tougher and better league than Ligue 1, but they didn't understand why.
It's not quite so bad now, but it's still there and still annoying. You still find that anyone in the England team is some kind of super player, whose strengths are over-estimated and whose weaknesses are ignored. For example, yes, Steven Gerrard should have one of the highest stats of anyone in the world for shot power and tenacity. No, he's not one of the best long passers in the world (he's good but not great), and NO his teamwork stat should not be really, really high - the whole reason why Gerrard has never been a world-class player is that he has no understanding of teamwork or tactics, reading the game in progress, playing the simple pass when that's the best option, etc. He's bloody awful at that stuff, as bad as Cristiano Ronaldo for playing with his ego. Is this reflected in PES? Nope. They're too affected by hype and prominence. Emile Heskey, 85 shot technique? Yeah, right - if he hadn't been in the England squad when they were putting the game together, there's no way in hell he'd have got that. But because Heskey was in the England team, that couldn't have meant the England team was short of effective strikers - it must mean Heskey's an amazing centre forward. You get this with club teams too, average players have crappy stats when they're playing in Austria or somewhere, then suddenly become top-level players overnight as soon as they're sitting on the bench at Man United.
Ibrahimovic is the same - he's like a god in PES 2011, whereas he's always been known as an on-and-off player, I remember someone calling him "the biggest 20-percenter in European football", which is pretty accurate. Totally brilliant in one game out of five, bit of a waste of space the rest of the time. But he's reeeallllyyyy famous and he plays for reeeallllyyyy big teams, so...