I think in terms of which socialist would get the most votes, Liz comes in first, and Bernie second. But the Dems seem to have let their plan to turn on Bernie (again) come out, so he's probably toast.
The debates would be EPIC no matter which one got the nomination!
As for poor old uncle Joe, I think if he gets the nomination, they'd have to stop the debates the way they stop a boxing match when someone is being pummeled and can no longer defend themself.