This is my opinion only :
The Star is nice once ya get it set up ,but hard to change over or should I say a little more tideous, but again if ya shoot alot of 1 kind of bullet get it set up & roll on !
The Lyman types are sufficent for my needs & simple enuff to change over to a different bullet or caliber, I have 2 Lyman 450s & have 2 differnt lubes ,just change the dies & top punch to suit my needs.
I really think of a Star when running a 500 batch though.
Just as Smokey Joe suggested used ones are around just look for bent/ broken & worn parts , the main thing to check is to see if the ram has any wobble, the rest of the parts are fairly reasonable.
Here`s 1 of my Lymans I picked up cheap & it has a little wobble & I updated the toggle system for less than 20 bucks. the new ram did take some of the wobble out & it does a fine job.