They are all good, and you pretty much get what you pay for.
Dillon is my favorite.
I once test drove a friend’s Hornady for over a thousand rounds of 45 ACP. At the time, I had One 650 and was considering a Hornady for rifle reloading. I ended up with a second 650. Then I sold one of them, and I missed it, So, I bought another 650. So, three 650’s, a 550, and a square deal B later.....I am sticking with Dillon. Currently, I have the two 650s.
They all break and occasionally malfunction. Dillon’s warranty is outstanding. If it breaks, all it takes is an e-mail with your address, and the parts are shipped asap.
In the Dillon line up, if you want to reload less than 500 rounds before needing to change over to a different caliber, go with the 550. If you want to load a few thousand at a time before switching calibers, go with the 650. If you are serious about tens of thousands of one caliber at a time, get the 1050. The square deal is only intended to do one caliber.