Recency bias. We were #1 over Purdue and Houston a few weeks ago. All 3 teams have each lost one game since then. Only reason we fell to 3 is because we lost most recently.
It was recency bias that allowed us to jump them. Overall their resume is a little better. It's a virtual tie, which is fine.
Looking at the top 10 and projecting seeds, I expect UNC will get that 2 seed, not Iowa State. Makes for interesting regionals. Marquette can't be in ours. Kansas can't be in Houston's. South regional is Dallas. Midwest is Detroit.
West: Arizona; Kansas/Marquette
Midwest: Purdue; Kansas/Marquette
East: UConn, UNC/Tennessee
South: Houston, Tennessee/UNC