To be honest, Alonso would've sealed it all up quite nicely if he didn't stoop so low in qualifying at Hungary. On pole, he probably would've dominated that race and been world champion last year. As it stands, he was the reason his campaign fell apart.
To be fair to Alonso here, Hamilton was the one who originally did not stick to the plan. Okay, Alonso should not have reacted to Hamilton's silliness, but I don't blame him for what he did.

Ayrton Senna: WDC 1988,
1989, 1990, 1991
McLaren: WCC 1974, 1984, 1985, 1988, 1989, 1990, 1991, 1998,
1999, 2007McLaren: WDC 1974, 1976, 1984, 1985, 1986, 1988, 1989, 1990, 1991, 1998, 1999, 2008