"Is there anything better about the RCBS or are you just paying for the name?"
Yes. RCBS has a better external finish and some really nice knurling, plus the name/snob appeal to those affected by that, but they are good dies, on average. Lee's are also good dies, on average. There's really no average functional difference.
I have sevaral sets of both brands and several others. I've actually measured the finished results from several examples of all our brands of dies, including on targets, and find there is as much - or as little - variation between dies of the same maker as there is between makers. That's a fact, not an opinion based on how nice they look. Seems ALL dies are made to SAAMI specifications, +/-, no better and no worse, so what you actually get becomes a matter of luck, it's not brand dependant. Any maker will let a lemon get by from time to time but they will all correct it quickly, IME.
The DESIGN of the Forster/Redding die set twins is slighly superior to all others but the differences aren't massive and few rifles will ever notice any difference even with them.
So, I believe I can prove that the best rifle die set deal on the market is the Lee Delux set. It includes a "free" shell holder, a normal FL die and an excellant "collet" neck sizer which many of us who actually use it think is better for factory sporters than the current rage of expensive "bushing" sizer dies.
The Lee rifle "Dead Length" seaters don't crimp but you may purchase Lee's terrific Factory Crimp Die seperatly for not much...but most rifle cartridges really don't need to be crimped. Any OAL inconsistancy with Lee's seater is due to variations in the bullets or improper setup, not the die.
Only Dillon makes TC sizer dies for bottle neck cartridges (at about $200) and then only for .223 and .308 but they still require case lubing. I don't think anyone has made non-TC pistol dies for years.
A whole thread on dies and no one mentioned the, oh so great Blue one
