MLB's best young pitcher

The buzz in baseball this season has been very much centered around New York Mets right-hander Matt Harvey, and deservedly so. He's been sensational, commanding a mid-to-upper 90s fastball and power breaking stuff to four straight wins to start the season. After last week's matchup between Harvey and Stephen Strasburg, the question has been asked about which of the two is the better pitcher going forward. Let's expand that.