Your initial choices are Carolina, and the other 4 (these 3 plus your edit) are alphabetically New Mexico, Ohio St, Oklahoma, and Vandy.
Carolina is 1-12 in Q1, but that is only one data point. #41 is 3-4 in Q2, their efficiency-based metrics are worse than Carolina, and their wins-based metrics are worse, too. #42 has 2 Q3 losses, as you noted, their efficiency metrics are worse, and they didn't play a schedule as tough. #44 has 2 losses outside of Q1 and their efficiency metrics are worse - their ORtg is identical to Carolina's, but their DRtg is worse, if you can imagine that. #47 has a pathetic OOC SOS, 3 losses outside of Q1, and worse offensive and defensive efficiency metrics.