My ideal heavyweight has reflexes of David Haye, work ethic, ambition and punching power of Wlad Klitschko, Chin and mean streak of Vitali Klitschko, heart and ability to cheat without getting caught of Evander Holyfield with a cheerful talkative personality of Tyson Fury that was forced to go to college and graduate with honours (because otherwise Tyson is just so damn dumb).
Dance like Ali. Follow a gameplan like Ali. Weather heavyweight bombs like Ali. Land sneaky, fight ending phantom punches like Ali. Actually fight the best anytime and any place like Ali. Crazy, head jolting, lightning fast combos like Ali. I guess you could say a heavyweight that doesn't fight like a heavyweight and more like a welterweight, that really psychs out alot of opponents.
Larry Holmes on his very best night would be capable of beating any heavyweight in history. I believe that. Holmes was as complete a heavyweight as I ever saw. Maybe he could have hit a little harder, but he didn't need to, his power was decent enough and he was such a great boxer. I'm not sure I could realistically imagine a heavyweight who was more capable than Holmes.