Arizer.
Why? It's a GOG chamber (standard glass means you can use off the shelf adapters for water pipes), does whip or bag, comes with remote, is light yet durable, and costs half of what a Volcano costs. I personally think it tastes better too. Both have a ceramic heating core, but Volcano surrounds theirs with plastic, and the whole vapor path is plastic. With Arizer they surround the heater with glass, the herb chamber is glass, the bag mouthpiece is glass, although the whip and bag are themselves high temp plastic. I still get a bit of plastic taste with the whip but the bag seems more heat resistant. Either way, no where near as bad as volcano or *shudder* the cheap knockoffs. Its worth the $$ for the Arizer, I def wouldnt go cheaper