Definitely go with a DaBuddha or Silver Surfer if you want a whip style vape. If you want a bag unit, then I recommend the Volcano or the HerbalAire.
I would only get the Extreme if you really needed both of those functions.

But you haven't told us what characteristics are most important to you in a vape..
Monster rips, efficiency, durability, aesthetics,or convenience?

Once we know more of what you're looking for, it will be easier to guide you in the right direction.

Taylor
theviseonline.com