When I run the press, or against the press, I look at these matchups, and try to find advantages to exploit:
1. Ath vs. Ath - especially for fouls, but for overall effectiveness
2. My speed and defense vs. opponents speed and ballhandling - for turnovers
3. My def and ath vs. opponents LP and ath - for FG% in paint
4. My def and speed vs. opponents per and speed - for FG% on perimeter
Running the press, I want to exploit as many matchup advantages as I can find, especially regarding 1 and 2. Attacking the press, I want to minimize my disadvantages regarding 1 and 2, and exploit advantages in 3 and 4. The actual formula isn't this simple of course, but this is a rule of thumb that serves me well in gameplanning.