I prefer PQS developed by Baseball HQ. 4-5 points is a dominant start, 2-3 is an ok start, 0-1 is a disaster. What i like about it is it ignores ER's which really don't have a strong correlation with how well you pitched in a single game. Its downside is its obviously not readily available without paying money and coming up with the numbers for yourself can be tedius.
In PQS, we give a starting pitcher credit for exhibiting certain skills in each of his starts. Then by tracking his "PQS Score" over time, we can follow his progress. Here are the criteria...
1. The pitcher must have gone a minimum of 6 innings. This measures stamina. For a 6 IP performance, the pitcher gets 1 point. If he goes less than 5 innings, he automatically gets a total PQS score of zero, no matter what other stats he posted.
2. He must have allowed no more than an equal number of hits to the number of innings pitched. This measures hit prevention and earns him 1 point.
3. His number of strikeouts must be no fewer than two less than his innings pitched (IP minus K must be 2 or less). This measures dominance and earns him 1 point.
4. He must have struck out at least twice as many batters as he walked. This measures command and earns him 1 point.
5. He must have allowed no more than one home run. This measures his ability to keep the ball in the park and earns him 1 point.