Everyone has a preference for their flavor, but Dillon Precision is the way to go if you're looking for a progressive. Dale is right in that if you're looking for a single stage it's hard to get it wrong, but I've been around reloading since 1990 and have seen the frustrations of a LOT of people who went with a progressive system that wasn't Dillon. They are easy to set up and once set up, they stay that way. The Dillon powder dispenser is the most accurate on the market, and if consistency matters to you (and it should) then the choice is clear.

Buy once, cry once.