Well, from someone who has played both and umpired both, I'll take SP any day.
I completely disagree with Tom's assertion that there is no skill in hitting in SP. As I've noted before, I've umpired games involving Major League players and have seen them strike out swinging! It is all about the timing and, yes, there are junk pitches in SP. The biggest problem many SP players have is that you have time to think about it and that will just kill you.
As far as the battery is concerned, I will take exception to that statement. A good pitcher is important, but many do not understand what their job is. A good SP can throw strikes while mixing up the height of the pitches. They can also throw a junker when necessary and know the hitters that will chase junk. If a pitcher can field the middle, that is icing on the cake. The catcher, especially at the higher levels where stealing is permitted, must be on top of the game. A good catcher is like a conductor, directing the team from the only position which can see the entire team's set at one time. They will also remind the infielders of their options prior to the pitch.
They also know the batters and their tendencies, can help remind the pitcher of the hitter's weakness and stop the ball from hitting the umpire (MOST important point). But one of the most underrated things a catcher does in SP is talk. It doesn't make any difference what they say, just make a noise. Pick a subject and run at the mouth. It can drive some batters crazy, just make sure they do not talk about or address a member of the offense.
Y'all have too many memories of when you played keg ball. Or maybe that was holes in your memory
It isn't the same game any more.