Mac: Beta client or VM?
If you’ve already got an account, I’d say it’s worth a try at least downloading the Mac Beta, before doing parallels. There’s a Native Mac Client on the way at some point, though we’ve not heard any progress in a while, but they are working on it. 
Neither one is especially good, honestly. If I had to guess, the Wine 2.0 release apparently runs with GW2-64.exe, and is likely to be the best option until a “native” build comes from ANet.
FWIW, I did try Parallels, VMWare Fusion, and VirtualBox. All ran GW2, but none ran it especially well. I ended up going with the “beta” client, and ramping character model count and details right to the very bottom to minimize memory use.
That, and exiting after a world event, solved most my issues.
Pesonnally I have tried, Parallel and Crossover 16 (which relies on Wine 2.0).
None of them reaches the level of performance of the Mac Client.
By lowering the options enough (no shadows and everything at medium) I have found that the games does not crash that much. It only crashes from time to time during the meta events (like in DS).
For reference I am running an iMac 5 Retina Display 16 Gb RAM, CPU i7, Radeon M295X with 4Gb VRAM.
Thanks.
I’m running a MacBook Pro, 13 inch, dual core i5, 8GB RAM, Intel Iris 6100.
Mac beta ran good on my prior, a 15-inch retina macbook pro with the quad i7,16GB RAM, and iris pro, although I got it wet. The games I do play… WoW has native, EQ and EQ2 run in VM, and SecondLife has native Mac, I have my gaming PC, I just love my Mac… Gaming PC runs all my games, but its just not my MBP. Killed the 15-inch rMBP that had the nice amount of RAM and the nice quad i7 although it only had the iris pro graphics. Was just out of the price range this time, considering I’m not even a huge gamer. I only get on for an hour at a time, I spend most my time on SecondLife… a VR world. I recall looking at performance monitor on the prior Mac and I realized I wasn’t even utilizing anything near what it was capable of unless I was doing stuff in a VM.