SH is the most strength-oriented. IMO, the others are all pretty much endurance. For strength traininng workouts, you really need more rest between sets because you're lifting very heavy and muscles need more time to recovery. S&H is the only workout with sufficient rest (and it's minimal as far as "real" strength training). You CAN make some of Cathe's other workouts (the ones with a slower rep count and fewer reps per set) more "strength friendly" by adding longer breaks between sets (and definitely betwee body parts in workouts like MM), and lifting as heavy as you can with each set. This would work well with GS series (ie: put as long of a recovery break as you need between sets of push-ups in C/T and do them all on your toes), as well as with some of the premixes on P/P and SS.
AS I said, S&H is the most "strength-oriented" workout, and PH and ME are on the other end of the spectrum, as the most "endurance-oriented" workouts (especially PH). Cathe once posted her rating of the workouts as strength vs. endurance, and she rated PLB/PUB as second to S&H in terms of strength ( I don't agree that the pyramids are very strength oriented when done "as-is" because of the very little rest between sets).
As Nancy mentioned, there are a lot of previous threads on this topic. You could do a search (an "advanced search") using the terms "strength endurance" in "topic and message" in the "ask Cathe forum" to find this.
