The 90s heavyweight era, while great and called by many the second golden time period of HWs, featured a number of battles fought between top guys in which one was past his peak; but which 90s bouts fought by the elites featured both men in the ring during their primes?
None. You could say the Holy v Bowe fight, but Holy was much better and bigger in their rematch while Bowe was ovderweight in that second fight, in the third fight their were rumors that Holy had a hole in his heart with impeded him in that third bout and in his strange loss to Moorer.
Lewis - Briggs Tyson - Ruddock 1&2 (I still consider Tyson in his prime up until 91 - he was only 25) Morrison - Mercer Ike - Tua
Let's see here: Moorer vs. Stewart, Bruno vs. McCall, McCall vs. Seldon, Seldon vs. Bowe, Mercer vs. Lewis, Bowe vs. Gonzalez, Grant vs. Gonzalez, Grant vs. Izon, Tua vs. Ruiz, Jefferson vs. Harris, Rahman vs. Tua, Tyson vs. Ruddock. I think that pretty well covers it.