My choice is the Dillon 550 especially for multiple calibers and their warranty is the best. About ten years ago my Dillon tumbler was destroyed in a basement flood while I was on the west coast. I called Dillon to ask about a replacement motor andd told them what had happened with the idea of repairing it, they said send it back and they replaced it, no charge.
Go with the 550. I had seven Dillons at one time when I was shooting in competition every week, three 1050s, two 550s and two square deals. The 1050s are beautiful but expensive. My bench now has one 1050 and one 550, and the 550 would easily do everything I need.
Anything I have had from Lee has been junk in my experience, handloading for 50 years,
IMHO.