I really don't get why people automatically assume it SHOULD be Messi. I think it will be, as he's simply better liked than Ronaldo.
But Ronaldo outscored him, broke scoring records all over the place in a significantly worse team than Messi(for most of the past year anyway).
They are both fantastic players but, in terms of personal records Ronaldo has done more in the past year, in terms of the teams they play in Barca did much better, but it seems odd to punish Ronaldo for not being a Barca player or gift it to Messi for being a Barca player.
They've both had brilliant seasons but, hell I can't even remember what Ronaldo did, the all time Real league record, the all time league record full stop, the Real all competitions scorer, the european golden boot?
From wiki I think its
First and only player to break 40 goals in la liga,
european golden boot,
first player to win the euro golden boot in two different leagues,
won the copa del ray scoring the winning goal, against Barca,
top copa del ray scorer.