Portugal by far. Holland will not get far in this tournament, their performance today showed again that they are not that good as people think they are but they were very lucky today. Portugal on the other hand shows consistency and an extremely talented midfield.
I didn't really count them as potential winners beforehand but after the first week I do think Portugal has a serious chance to win the Euro. For Holland I still think they got no chance, the results so far are not giving an actual image of the strength of them.
I still bet on Croatia or Portugal. Beforehand I said Croatia or Germany, but I now replace Germany by Portugal after having seen the first set of games.