Bongs, for sure! (By the way, I doubt seriously that anyone reading this thread is not already clear what they are) Joints waste a lot of weed since when you're not taking a drag there's smoke just coming off the end and wafting off into the air, but with bongs it all goes into your lungs, plus it's filtered too. Plus, a bong is ready to go wherever you have water but if you're a joint smoker you have to always have rolling papers. If your bong starts to taste nasty, just put in some fresh water and make sure you clean it every once in a while.

The only advantages I can see to joints is that they're portable (but so is a nice glass bowl, which I prefer) and you can smoke them in public if people don't get close enough to see it's not a cigarette. But I usually smoke in my room anyways so that doesn't do much for me.