I started with a Lee Challenger single stage. I wish I'd just bought the Classic turret in the first place. It's noticeably faster, though I haven't done it against the clock. I'm not actually using it to it's full potential. I don't have the powder through dies and I don't have the primer feed. Plus it will function just fine as a single stage press, just remove the actuator rod. 10 seconds to switch it it out, even if it fights you.
The Lee has the auto index feature. I haven't checked to closely, but I don't believe that the other brands act in the same manner, at least not without addition add ons. (I could be wrong however)
“At the core of liberalism is the spoiled child – miserable, as all spoiled children are, unsatisfied, demanding, ill-disciplined, despotic and useless. Liberalism is a philosophy of sniveling brats.” — P.J. O’Rourke