Completely agree. The crotch ones work so much better..well, not for the intense posing, but I like my figures to be in pretty simple, static poses.
The ring/waist stands are ____ing TERRIBLE. It takes a ____ing hour to get them on one figure, and by the time you get it on, there are a gazillion scratches in the friggin paint.
Oh, and the netting. The ends always get caught in the netting. So annoying.
The crotch ones aren't as noticeable and I can still get some pretty decent poses out of them. I dig the waist ones too, but only for taller figures so I can wrap them around the thighs. That's what I'm doing with my Chopper and Celtic. Gives me more posing options that way.
Ultimately, it comes down to the figure. I haven't had any dives with my Classic yet, but I check my Preds every now and then to make sure they're not wobbling around on their stands. So far, so good.