Hornady LNL single stage. Works great, came with most of what I needed to get rolling, and will serve well for years. Plus, when I eventually buy a LNL AP, Ill have the bushings and such already on hand.
With every die in its own LNL bushing, switching is nearly as fast as using a turret. I do recheck adjustments every time I switch brass or bullet, even in the same caliber.