MGM is our 17 y/o's favorite park. My 13 y/o's favorite ride (Star Tours) is there and overall I have to say that DH and I enjoy it also. I love Star Wars and Indiana Jones...so I can just walk around that area and be content. DH claims one his favorites is Lights, Motors, Action! Our entire family's favorite nighttime show is Fantasmic!
But, everyone has different opinions. In our little family of four, we each have a different "favorite" park, we each have a different "favorite" ride and show (except for Fantasmic...that's unanimous with us).
I say give it chance...you will probably find at least one attraction that winds up at the top of your list even if the park overall is not your favorite.