I've used quite a few since joining DC:
SunBeam - very old something, 100w i think, burnt out mixing CCC dough
B&D MX250 - 00ber speed demon! even at #1, returned
Cuisinart CHM-3 - Slower than the B&D, but still alil too much, lots of torque! bent a beater in CCC dough!
KitchenAid KHM3 - Older 3 spd AC version, worked pretty good, nice slower speeds, used the same beater as the CHM-3 .. but now its bent, can't use it anymore
KitchenAid KHM7T - digital speed controller, nice slow starts and ramps up to a good speed too, uses standard type beaters (doesn't need the lil nipple/bump thing at the end, just the ears)