Originally posted by Turnbull:
...When, finally, Sonny was Acting Don, the results of his Donship were indeterminate--he didn't end the Great War of 1946 either by diplomacy or force...
True...he 'ended' it by losing that famous temper, falling into a trap set by his own brother-in-law, and being shot to smithereens. Prior to that, business was neither coming in nor going out. While no one can know how either Vito or Michael would've acted under similar circumstances, all Sonny did was nurture a stalemate. One that could only be jarred with his own demise.
In short...he's NOT underrated, he WAS a bad Don.
Apple