It's either: Salvador Sanchez and David Tua. Sanchez his volume/footwork/afro/work ethic combined with Tua is godly Or: Ricardo Lopez and Wladimir Klitschko. Lopez his mind/skill set + Wlad his physical abilities is top 10 ATG easily. Tua+Sanchez would be greatest ever.
If you want an absurd combo... Jacob Matlala and Julius Long I really don't know how that would turn out.
DLH & Pryor: DLH's frame, jab, left hook, chin, and defensive skills combined with Pryor's right hand, unlimited stamina, and Panama Lewis = unbeatable. Hagler & Pacquiao: Hagler's stance-switching ability, well-rounded skills, and indestructible chin combined with the prime Pacquiao's speed, power, explosiveness, and stamina. Foreman & RJJ: Foreman's size, chin, jab, and power with RJJ's reflexes, combos, and speed.
I dunno. I prefer my Dick Long hybrid. Though giving him the nickname "Baby" might make things awkward for the announcer.
roy jones and julian jackson. the greatest skills and athletic ability with the biggest terror of punching power.
Mod era: Floyd Mayweather + JMM's massive balls = Sugar Mayweather He should of beaten Maravilla, Canelo, Pacquiao, and a prime Cotto and Margarito by now. THEN he would be a real candidate for GOAT. PUSSAY