A pitcher's win total has as much to do with his team (and other factors) as it does his individual performance. This year Felix Hernandez is 2nd in the AL in K's and ERA and 1st in Quality Starts and IP, but he only has 7 wins. 30 pitchers in the AL alone have more wins than Felix. So, how many of those guys would you rather have on your team? Not many.
Wins as a statistical category are overrated. Not entirely unimportant, but overrated. ERA, WHIP, QS, OAV just to name a few are more important indicators of a pitcher's performance.
And there's this. In 2006, we saw a pitcher who was the exact opposite of Felix. Randy Johnson, who won 17 games for the Yankees, but had a 5.00 ERA. How? Well, the Yankees averaged more than 6 runs per game when he pitched and scored more than 10 runs five times. So, was he a dominant pitcher? I'd say no.
So, would I rather have a pitcher with great statistical categories? Yes. Because if he plays for a team that scores runs, he'll win more games.