Hornady L-N-L AP
I'll throw in for the Hornady LNL AP. I've had one for about a year now and have never once had a primer feed problem or other technical problems at all, save for kinking the cartridge retaining spring a time or two. I think the earlier models with plastic primer feed parts had quite a few problems but not so with the more recent all metal version.
The powder measure system is simple and reliable, it's extremely easy to dump and change powder types, the LNL bushings make changes to different dies a snap (particularly if not changing primer sizes). Shell plate changes are also very simple when you need to do it. I found I can even use the 45 Colt shell plate for 44 mag, and since the case length is about the same no change to the powder drop length is necessary.....takes just a couple of minutes to change over.
I leave this press set up for large primers and have loaded about 7500 rounds since getting it. I could not be more pleased. I leave my old Hornady Pro-Jector set up for small primer work and am giving serious thought to replacing it soon with another LNL AP I like the design so much. Most of the cowboy shooters swear by Dillon so I'm kind of an outcast using Horndays. They apparently do still have a few bugs to work out with the auto case feeder, so I'll wait a while to add one of those. And some folks complain about the case ejector wire getting in the way of Lee Factory Crimp Dies at station 5 -- it does do that if you want to use it full length rather than just crimp. In most cases, that's not an insurmountable problem.
I've used the Dillons and think they are a fine machine -- I might even say superior to the old Pro-Jector, which I bought new really cheap. But I never felt particularly driven to buy a Dillon. I think the LNL AP just kicked Dillon's rear with the next generation of machine advances. It's easier to use, easier to set up, easier to change over, and much, much, much easier to keep clean for smooth running (and you dedicated Dillon users *know* what I'm talking about, admit it, you do).