Roy Halladay is the National League’s Cy Young Award winner for the 2010 season. That much is certain, and why wouldn’t he be? He led the league in wins, complete games, innings pitched, shutouts, and finished in the top three in every other statistic of importance.
As for the others that could be considered, Johnson doesn’t have the wins, Jimenez’s ERA is much higher than the other three, and Wainwright falls just slightly behind Halladay in nearly everything, and looks to be the second place finisher. Besides, none of those three teams made the playoffs, which does factor into Cy voting; whether it should or not is a discussion for another time.
This is certainly not the first time that a pitcher had shown to be a clear choice for the Cy Young Award. In fact, it seems to happen fairly frequently. Over the last 25 years, there are 15 instances of very easy selections for the Cy Young Award.
Multiple winners are limited to two appearances on this slide for more variation, so Clemens or Maddux isn’t going to show up 4+ times.