"I was told that Reeding dies are superior to RCBS. Does anybody know if this is a fair statement."
IMHO, it is a fair statement.
I hold Redding and Forster in a tie for first place for BR/Comp dies. All others are tied for second place.
Externals can be homely or purty but externals don't load ammo. ALL die internals are made to SAAMI specs and that's a range, not a specific target. Ditto our chambers. How well a given set of dies match a given chamber is pure luck, it's not brand or cost dependant. Dies are actually sorta like women; pretty ones always cost us more and are nicer to look at but they don't function any better!
If both dies in a conventional set matches the chamber well they can load ammo as well as any more expensive set. If not, the superior designs of Redding/Forster dies insure that they ALWAYS do pretty well!
I buy new dies because of specific user features, not the brand as such. For my rifles that usually means Forster but sometimes Redding, some times Lee. For handguns it's usually Lyman's, or Redding's copies, or Lee. And, if the price is right on used dies, I'll buy anything because they all work.