All time teams would be interesting as you'd get some non-regular or modern powers. Think a team like the University of Cincinnati, which has had some good teams, but not great teams since the 60's. I mean the only active Bearcat is Tari Eason, but all time, they'd be a really hard out because they are led by the greatest college guard ever in the Big O along with HOF Twyman, #1 pick Martin, and a bunch of other long career players like Nick Van Exel, Lance Stephenson, and Connie Dierking. Obviously not on the level of UNC, Duke, UCLA, or UK, but would at least give them a game and would be very hard for anyone else to beat.
Starters - Oscar, Twyman, Stephenson, Martin, Dierking
Bench - Van Exel, Satterfield, Wingfield, Demarr Johnson, Fortson, Blount, Eason, Ard, Roberson
Not super deep, but that starting 5 with Van Exel is tough.