I just started getting serious about learning to diabolo about a month ago, so I'm still trying to decide what my first pair should be (before I'm ready for a pair) So far I have one each of;
Higgins Brothers Anti-Gravity
Mr.Babache Finesse (G4)
Henry's Circus (the newer one with the plastic hubs)
Sundia Shining (not sure what to call this one - shining cups with a wide fixed axle)
All yellow. So that's 5 so far. I'm waiting for a shop in North America to get some yellow Epics in stock.
Oh, and I'm still using wooden sticks. I was amazed how all of the diabolos, even the Anti-Gravity, were transformed when I replaced the free string that came with some of them with Henry's string.