Everyone knows about Venture company server and its lack of crz. The latin servers are also great places to hunt pets. And with servers only crzing with like servers, and Blizzard trying to keep language groups together Quel'thalas is a Great place to hunt hard to find pets. It is the only latin speaking non pvp server, which means that it has zero crz if I've read the rules right.
I have found all 3 of my guardlings there (normally 10 or so of them up at once), both of my minfernals (only checked felwood three times for the two of them) and it always had at least 4 giraffe calves up when I was in the barrens.
So grab your Spanish to English dictionary, get yourself a DK, and head over to Quel'thalas server.