Mizzou Arena is the nicest college bball facility I've ever been in as it is like a smaller top notch NBA arena. Allen Fieldhouse has the best atmosphere I've ever seen in person although LNC is really good when sold out and has a more raucous environment than MU (I've seen great games in both Mizzou/Hearnes and LNC between top 5/10 teams).
Would love to see Hilton in person someday as well as Bramlage & GIA when it's full for a good Bedlam game. Could care less about the rest of them unless it's to see OU play.