I have the Turner 75mm and have been very happy with them. Though I do plan to replace them soon as I've been running them for a while and they're starting to show some surface wear. To be expected given the amount of times I'm yanking wheels off but just playing it safe (also recommended to replace studs every 2 years).
But these are probably the most robust stud you can get these days...
http://store.bimmerworld.com/wheels--tires-c53.aspx
And forgot to say I've been considering these, too...
http://www.racingbrake.com/SearchRes...nsive_Search=Y
.. but while the unique head makes for easy installation, I have concerns about how easily/quickly nuts will engage or if the sharper edges (compared to bulletnose varieties) could damage the nut threads (and also be more a bit slower to get on straight).