Roy Oswalt and Jake Peavy are two of the best starting pitchers in the National League. They combine excellent stuff with impeccable mental makeups. The Case for Oswalt There has been no more reliably excellent pitcher in all of baseball over the past six seasons than Roy Oswalt. He has more wins over the past five seasons than any other pitcher in the game. Oswalt burst onto the scene in 2001 when he went 14-3 in 20 starts with a 2.73 ERA and a WHIP of 1.06. He has the second lowest career ERA out of all active starting pitchers (3.05). Oswalt has good mechanics, excellent control and an unflappable on-mound disposition. He features a mid-nineties fastball, two types of curves, a change and a slider. The Case against Oswalt Oswalt?s small frame may make his body breakdown over time. The pitchers who have continued to pitch well into their late-thirties/early-forties, tend to be of the bigger variety, like Nolan Ryan, Roger Clemens, etc. He has been relatively durable, with 2003 being the only season where he was forced to miss substantial time. The Case for Peavy Jake Peavy is unquestionably the ace of the Padres? pitching staff. He has a career ERA of 3.51 while he is consistently one of the finest strikeout pitchers in the game. In 2006, he led the NL in strikeouts per nine innings with 9.56. Peavy features both a two-seam and four-seasm fastball that is in the low to mid-nineties, as well as a solid change and slider. The Case against Peavy Peavy took a relatively big step backwards in 2006 due to offseason injuries that forced him to change his mechanics. His ERA was 4.09, while his WHIP was 1.23. Petco Park is one of the best pitcher parks in the game. His career ERA at home is 3.07 (includes years at Qualcomm) while his road ERA is 4.00.