I enjoy bubblers or bongs because, well, they just plain don't hurt as much. I hate getting a lung-full of HOT smoke, its irritating. I know that bongs are just as bad health-wise, but they sure are much more comfortable to smoke on.
Not to mention that you can get a good high from just 1 or 2 hits which can save time sitting around and smoking which can get a little boring. I didn't smoke at all for a few weeks and then took just 2 bong rips and was so blitzed I couldn't focus my eyes. Hehe, love bongs.