Berbs not in the squad for 2011 CL final is a mistake that Fergie made and he publicly admitted it was mistake.
Berbatov was great, could have been even greater but he never was the main man. In almost every game you'd see Berbatov in excellent position for a shot, or even simple tap in, but the likes of Rooney, Nani, Ronaldo,Tevez etc. would opt to shoot instead of pass. For two seasons in a row he scored over 23 goals for Spurs because he was the main man and his teammates played for him much more.
In Manchester United everyone wants to shine. The end of 2011 season comes to mind - final game at OT, Blackpool. Berba needs a goal or two, to grab golden boot by himself, not to share it with Tevez from city.
The team didn't play for him AT ALL. He grabbed a couple of assists in this game, but the likes of Park, Owen would always go for glory, always looking for goals for themselves.
People also forget how many assists Berbatov made in his first season. Yes, he did miss penalty against Everton, but so did Rio... And we actually looked better when he came on in the 2nd half in CL final vs Barcelona then. A game where we got beaten by a fecking Messi header...
Berbatov is appreciated worldwide because he always wanted his football to be beautiful. And he delivered great moments, moments which will be remembered.