Not in Oceanic on Classic we don’t.
We have 1 server, and no RP either. The US servers aren’t really a good choice as we have a +200ms ping for riding them.
As to OP’s question, on the US servers, there is reportedly some wildly large disparity. I have no Idea on the Oceanic one though, we can but hope it’s somewhat more equal because we only have 1 PvP realm for the entire of Oceanic, but who knows.