One bracket that always popped out to me was the 174 pound weight class 6-7ish years ago between Kokesh (Neb) Evans (Iowa) Storley (Iowa) Browns (PSU) amongst a few others. It seemed like every match was close in either duals, B10's and NCAA's with results commonly swapping. It was also an added bonus we got to enjoy this weight class 2-3 years. IMO: I would rank the following 4 in this overall order:
1) Brown
2) Kokesh
3)Evans
4) Storley