Best ever might be a stretch, they happened to play on the best team ever at ISU, Ron Bayless and Justus Tigpen were a very good guard court also. I would like to see what they could have done with Fizer on their team But if you go by wins alone, then Tinsley and Horton were hands down the best to ever play together at ISU.
They played half their ISU career without Fizer and still never lost to Kansas and never lost at Hilton Coliseum. Lets compare the senior year of Horton and Tinsley with Bayless and Thigpen. Tinsley and Horton had a supporting cast of Jake Sullivan, Martin Rancik and Paul Shirley, were 25-6 overall and were BIG TWELVE CHAMPIONS at 13-3.
Bayless and Thigpen featured a supporting cast of Fred Hoiberg, Loren Meyer and Julius Michalik. They had a overall record of 20-11 a conference record of 8-6 which and also lost in the first round of the NCAA tournament. They were 1-6 on the road in conference and won their one game at Colorado by one point.
Thigpen and Bayless easily had TWICE the supporting cast and produced half the results. Can you imagine adding Hoiberg, Michalik and Meyer to Horton and Tinsley for their senior year instead of Rancik, Sullivan and Shirley. Tinsley would dish all day to Michalik and Hoiberg for J's or Meyer for a dunk after driving inside. That team would have another strong shot at the elite 8. You think its a stretch? The only stretch is to act like its even close!