I don't know how many diaries have been dedicated to the "future aces", but I wanted to give my impressions from watching them, last night in particular.
Hamels: Tremendous control, far better than Liriano or Felix. Hit his spots at will. The only reason he walked anyone in the game is because he lost a little after running the bases in the 5th. Struck out the first 2 guys, then none after, but Arizona hit maybe 2 hard balls all game off of him. I don't understand, personally, why people can't put him in the same class as Felix, Verlander, or Liriano...
Felix: I don't understand why he doesn't throw his fastball more, and for more strikes. He's got such great movement on it... one example was a 2-0 2-seamer to Morneau that darted away and he got a routine grounder to SS out of it. Good for him that he was facing the Twins because he could have been hurt a lot more by his lack of control, which put him in hitters counts all night long... got a break when Hunter bailed him out by swinging at a tough slider on a 3-1 pitch to get out of a jam. He needs to develop more confidence to throw strikes before he takes a step further. I see a kid with all of the stuff and a lack of confidence at this point.
Liriano: Didn't have his best stuff, as evidenced by only 3 K's... also seemed to get agitated by things going wrong. I'm not sure if it's immaturity or a temper, but he really seemed bothered that Seattle was hitting him a little last night, and Gardenhire and company had to go to the mound a couple of times to calm him down. He needs to gain some poise for sure. He throws the hardest of the 3, but I wouldn't say he has better stuff than Felix. Definitely has the look of an ace, but has got to gain control of his emotions when things aren't going his way.
One last thing... if I had to pick one young position player to build my team around, it's Joe Mauer. The guy is phenomenal. He's great defensively, hits line drives all over the place, draws walks, doesn't strike out, runs well... pretty much everything except hit for a lot of power, and he will as he gets older. You can argue that picking a catcher is risky to build a team around, but I'll take my chances with that guy.