Robert Mugabe was the only major black rhodesian leader who was openly contemptuous of democracy and negotiation. However, he only assumed true leadership of the Zanu-PF after he, along with saner rebel leader Joshua Nkomo, was released in a South African-brokerd peace deal in 1974. What if he had died of natural causes in prison in the early 1970s? Since the fall of the Rhodesian regime was inevitable by that point anyway (barring Smith growing a brain), majority rule would have been accomplished, but would've Nkomo or even Muzorewa ascended to power? Would have either of them run Zimbabwe better afterwards?