No, I'm not saying they are way better or anything. I havent heard them either.
What I am getting at is you sound like you have a frankenstein system right now, as we all have had at some point.
You are finally making the leap to the realm of lasting quality and synergy between components in your system. Now is the time to do it right and let your system wow you for many years to come.
Cure the upgraditis we all have suffered from at some point or other and pull the trigger on the best you can do. Then there's no regrets.
Congrats btw, its sounding like you will have a great setup.