imo vapes win.
If you want a bong sized hit or a cooled down vape hit, then vaporbong, the best of both worlds.
Combustion as a physical process is only so efficient - vaping can theoretically deliver much more THC because there is no excess heat to destroy it and also very importantly no destroyed
terpenes - taste... supposedly with vaping 92% of avail. thc is made consumable, vs a bong where 78% is, vs a jay where 24% of total thc is made available. Add the bonus that vapor doesnt linger/stink like smoke and the stealth benefit becomes apparent as well.
Granted - I have unfortuantely owned crappy vaporizers before, I even personally despise volcanos - the device that the study that yeiled the above numbers tested against the other methods.
But after going to amsterdam and meeting the Verdamper and trying volcanoes and the various other devices all the shops had,
I must reiterate that vaping to me is obviously superior when the vape you are using is a proper device.
Again, I've gone to my local headshop, bought a vape and been sorely dissapointed and gone right back to smoking again and again, but to this day nothing in my arsenal save for the Aqua Lab's GonG Vapor Globe (which is still technically a vape (with a bong aww yeah) out preforms the Verdamper or the Magic Box, or the Iolite, and all four are absolutely quality devices.
Vapor Globe
http://i233.invalid.com/albums/ee263/king_crimson99/Photo193.jpg
Magic Box
http://i233.invalid.com/albums/ee263/king_crimson99/Photo319.jpg
Iolite
http://i233.invalid.com/albums/ee263/king_crimson99/Photo318.jpg
Verdamper
http://i233.invalid.com/albums/ee263/king_crimson99/reizerklein.jpg
To me to think that primitive crude combustion could give you better effects or taste over the display of mans mastery over technology and the physical world that is vaporizing is nothing less than an absurdity. But thats me. :D