Mighty mouse (I owned one): ball that stopped working instantly when you used it and the only way to get it clean involved destroying the mouse.
Pro mouse (I owned one): cable frayed after no less than two weeks.
Apple USB puck mouse: just totally unusable pile of crap unfit for human use.
I decided to go for the innovative option in the end: the Microsoft £10 optical mouse. Works much better than anything Apple have ever thrown out.
However, for regular office use Magic Mouse probably is the most pleasant mouse I've used (and I've used a lot of different models). Never been pinched. And it's in one piece still (bought it just after it was released).
For gaming it's more or less unusable though… I need my scroll to be tactile, and I also need to be able to use both mouse buttons at the same time. Long live Logitech MX 500/510/518 for fragging!
Too bad that you've had bad experiences with Magic Mouse.
I'm not sure whether it's bad design that you 'should' hold it differently, but at least for me this is why I quite like the mouse.
(the bottom has started coming off though. that does bother me)