Final four? No, the furthest four

So Alabama (10) lost to Butler, who lost to Tennessee, who lost to Louisville, who lost to NC
Southern Cal (6) lost to Kansas St, who lost to Wisconsin, who lost to Davidson, who lost to Kansas
Kentucky (11) lost to Marquette, who lost to Stanford, who lost to Texas, who lost to Memphis
Belmont (15) lost to Duke, who lost to West Virginia, who lost to Xavier, who lost to UCLA

I lost when Baylor, lost to Purdue, who lost to Xavier, but Xavier squeaked by West Virginia, 79-75

I like the idea of a #6 taking it, but my gut says Kentucky. What do you think?

Previous posts here and here.