When you pair TD and CP3 who change the context from players that played together to the best two players that played at a school. Iverson and Ewing have been mentioned. Shaq and Maravich. Jordan and (choose one of many). The combos that Kentucky, Kansas, UCLA etc. could put together. TD and CP3 are formidable, but there are a lot more than you realize.
Blue bloods
UCLA: Kareem + Reggie Miller/Bill Walton/Westbrook/Love
Kansas: Wilt + Paul Pierce (probably)
UNC: Jordan + Worthy/Vince
Kentucky: Dan Issel + Anthony Davis maybe?
Duke: uh... Grant Hill + Kyrie or Elton Brand maybe? - they have by far the least top line talent
Other fun pairs
Houston: Hakeem + Drexler (or Elvin Hayes maybe) - this might be the best pairing
LSU: Shaq + Pistol Pete
Michigan State: Magic + Draymond - this would be fun
Cincinnati: Oscar + Kenyon Martin
Texas: Durant + Lamarcus Aldridge
Georgetown: Ewing + Iverson
Other notable ACC pairs
Georgia Tech: some combination of Anderson/Marbury/Bosh
NC State: Thompson + I have absolutely no idea
Notre Dame: Dantley + Carr
Syracuse: Carmelo + Derrick Coleman (or Dave Bing?)
Virginia: Sampson + Malcolm Brogdon?
I'd put Chris/Tim over most of those teams. Houston/Kansas/LSU/Mich St/UCLA/UNC look to be the other big challengers to me.