I think it really depends what years your looking at. The rdx has changed a lot since it's turbo days. I drove one yesterday (a 2016 advance pkg) for a loaner and I hated the way the seat felt. IMO my 10 tsx and my 13 mdx are WAY nicer and more comfortable. Some of the newest mdxs though have that 10 speed transmission, and I don't like the way that feels either.