> I guess my issue here is calling all these "paxos" when 2 (VR and VS) predate Paxos.

Definitely. All VR needs now is a paper called "VR Made Famous" because it's already been made simple, easy, fast and understandable! And, after all, it was first.

Thanks for the reference to Egalitarian Paxos, that's a great example of active replication in the Paxos (and not Multi-Paxos) sense.