Who is the better author? Nora Roberts or L.A. Banks?

I have read numerous books by both of these ladies. And I'm not sure which is the better author. Whats your opinion?|||I have read many many books by Nora Roberts and love her tremendously. I started reading her novels around age 15 and 9 years later still love them. I have not read any by L.A. Banks but I am certainly going to check her out. I have been looking for a new author to try so thanks!!!