I wrote a little simulation. Paxos rarely gets stuck with a small number of proposers/acceptors, but jams up solid once you get to, I forget, 10 or 20. Here it is:
https://www.yodaiken.com/wp-content/uploads/2016/10/paxos.pt...
Embarrassingly badly written Lua code for the simulator https://github.com/yodaikenv/consensus
The key to me is that once you accept the need for leader election, you have much simpler alternatives and can toss away the rest of paxos.