Clinton had Perot... that's the only reason he "won"
That would, of course, be incorrect. When Perot dropped out of the race, nearly all his support went to Clinton...it was the only time in the polls when Clinton was over 50%.
In June of '92 both Perot and Bush were running in the low thirties in the polls while Clinton trailed at 27%. Perot dropped out in late June and the early July polls showed Bush still running in the low thirties while Clinton had surged to a 20-point lead.
When Perot reentered the race in late September, nearly all of his support came at Clinton's expense. Clinton was leading 54% to 38% when Perot came back in. A month later it was Clinton 46%, Bush 34%, and Perot 13%.