hey zoomie, if slow-pitch is too slow, try to find a fast-pitch league. you'll get high competitiveness (nice word, i know). the ball may be bigger but they sure don't go as far or as hard as a baseball does. just a totally different sport, you can't really compare them, besides the basic touch all the bases : score a run.
sorry to sound judgemental, but you're kinda attacking my game, and that drives me crazy. i get that enough from the boys in my class. i love it when they actually step on the field, and realize that softball is a game.