There is only one bar in all of Kansas City metro/suburbs that holds itself out to be a "KSU" bar, and that's Kites. The food is beyond terrible, and it's generally packed....but there aren't any KU fans in there.
Lucky's thinks that they are, but they have a HORRIBLE TV situation....freaking Applebees is better.
The Other Side in old OP is an Iowa bar, that used to host the KC Catbackers...so a few show up there.
The rest of KC will be full of KU fans....though a few Mizzou folks may lend a hand at bars in Brookside or Waldo.