reach and stamina are exactly even kanto.
Physical reach yes. Diaz uses his reach much more then Daley though. Daley is a short power puncher while Diaz tries to pick his opponents apart from distance.
As for stamina. Both aren't bad but I probably would give Diaz a slight advantage. Daley cuts a lot and his punches do slow down later in fights. Diaz keeps motoring on and usually fights at a higher pace.
Still undecided on this fight, going to bet on Daley because of the odds though.