There are some very good pitchers in this world, but after the top 20 or so, the talent level really drops off.
1. Kenshin Ogawa
Two-time all-star and the season 2 AL Cy Young winner (34 GS, 15-7, 255.1 IP, 2.04 ERA, 183 K), Ogawa really cranked up his performance last season, leading Philadelphia to the ALCS. He's a workhorse, as he has ideal stamina/durability for an ace. He has top-notch control, dominates right-handed batters, has 2 great pitches, 2 good pitches and a fifth pitch that is slightly below average which allows him to mix it up while on the mound. Does a good job of keeping the ball down in the zone. Doesn't have high-end velocity, but that hasn't prevented him from striking out his fair share of batters.
2. Willie Oliva
Oliva had a down season in season 2 (34 GS, 14-6, 224.2 IP, 3.53 IP, 207 K) but it didn't stop him from making the all-star team. He's an equal opportunity dominator as he does a great job keeping the ball out of the hitting zone. He's not going to hurt himself with walks as he has very good control. He's a flyball pitcher which has led to him giving up a fair amount of home runs in his career. He has solid stamina and great durability to go along with with 3 good pitches, an average pitch, and a below average pitch. He has great velocity which helps to offset the fact that he doesn't have a dominating pitch. He is currently #2 on the career strikeout list.
3. Julian Tejeda
Young Mr. Tejeda mad his big league debut in season 1, where he struggled. He picked up the pace in season 2 (34GS, 15-10, 224.2 IP, 3.41 ERA, 169 K) and had a solid season. He's 23 years which means he has some room to improve. He has the ideal stamina/durability combo to get 35-40 starts, 220-260 innings each season. He is lacking in velocity, but does a great job keeping the ball down. He is good at keeping the ball out of the hitting zones and isn't going to walk many either. He has a great pitch, a good pitch and 3 above average pitches to go along with his other talents.