I use both and like both. I have more Lee dies just because they are cheap so I always have a set of Lee dies for every caliber.
In the rifle dies, I like their "Dead Length" seating dies that come with the Collet Die sets. They don't have a crimper so you can set the die so that the shellholder contacts the bottom of the die. Much easier to set up.
I also like the Lee tapered expanders, AND...I've never broken a Lee decapping pin...
