Even though Illinois lost, they can lose again in the Big 10 tourney and it doesn't matter - they still get a #1 seed.
I would give another #1 to North Carolina
After that it kind of depends. If BC wins the Big East tourney - I think they get one. If they don't, I think UK gets one. Even though Kansas is #9, they have the strongest RPI and the selection comittee looks at that so don't be surprised if they get one. I think it will turn out this way...
#1's - Illinois, North Carolina, Wake Forest, UK
#2's - BC, Arizona, Louisville, Kansas