I definitely choose rest over putting a player in a 'less optimal' postion in the batting order. I usually target the weakest teams to rest players, and in a standard OL, more than one out of every 5 teams(1/5 of your schedule) usually win 70 games or less and there are usually 3 that are either on autopilot or just plain awful. If a team is 19-77 he's doing something wrong and most likely he's not going to beat you either. And quite frankly, a decent starting pitcher is all that's required to beat those teams. That coupled with using the rest setting liberally in blowouts usually adds up to more than 120 pa's in any spot in the batting order. The amount of 'meaningful Pa's in a season are surprisingly fewer than one would suspect.