Warren Buffett : J.P. Morgan
The day will come when the comparison of Warren Buffett's investment in American companies the past few years will be compared to J.P. Morgan's saving the banking industry a long time ago. Both actions provided support that helped confidence and mitigate economic problems which could spiral out of control.
And yes, in the long run, the investments will pay off handsomely, possibly for Buffett's successor, but handsomly none the less.
Those who deride Buffett for his tax stance will also come around, as he is right about that too.