Oh come on Ruud, that's sophistry. It doesn't really matter whether Fergie prioritises the league or Europe, the point is that Everton at home - while no walk in the park - is a vastly easier game than Madrid away, which may be the hardest game we play all season.
Everton at home we would be gutted not to win, for Madrid away we'd even count a 2-1 defeat as a tolerable result.
For the hard as feck game, with Ronaldo, Benzema, Di Maria and Oezil running at us, SAF chose Evans. (In fact he chose him for both, but he left Vidic out at the Bernabeu). I don't think there's any other conclusion than that Evans is first choice.
Can't agree with the people saying Jonny reads the game better than Vidic though. They both read the game really well, and Vidic is much more experienced... he's a lot more than a hard nut who heads the ball.