Although RCBS' customer service can't be beat, I prefer Forster dies. I only load for a few chamberings but have several sets of Forsters and use their competition seater. I've tried RCBS, Redding (I think) and the witness marks on the Forsters are easier for me to see than any of the others.
The competition seaters load them streight as as any others as well.
Bear in Fairbanks

"Unless you're the lead dog, the scenery never changes."
Amazingly, I've lived long enough to see a President who is worse than Carter.
And finally,
Gun control means using two hands.