Greg - it's great that you like it. There's no reason that you shouldn't. There's also no reason that you should worry about what anyone else thinks.
Most folks around here don't think Wicked is fabulous, either -- so comparing the two isn't going to do much for you.
I LIKED Memphis, but I'd never see it again. I found Kimball BEYOND annoying. I didn't think ANY of the music was memorable and I didn't think the story was terribly compelling as told.
There are a number of threads that talk about Memphis. If you truly want to hear others opinions, use the search feature and you should find them easily.
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.