In an ideal world, where weed didn't cost much and there was no need to hide the smell, I'd pretty much always prefer bongs (although I'd probably still wanna mix it up from time to time just to keep things interesting). Glass spoon type bowls are my preferred on-the-go smoking method. Blunts can be fun with big groups, but they ruin the taste and the gooey 'tobacco snot' shit that sticks to your fingers is really annoying. I much prefer joints if it's gotta be something rolled, but I literally can't remember the last time I smoked a joint or blunt on my own or suggested it in a group when another option was available and practical.
On a semi-related tangent (hey, this is CD, how on topic can you expect people to be? ; ), there's this siiiiiiiick bubbler that my friend makes (he's made a few of them already for this one headshop in town). It's a sherlock bubbler, but it has what he calls a 'natural perc' - instead of a downstem from the bowl into a water chamber and then a stem coming off that, it goes straight from bowl to stem, and the stem bends down and then up again, with enough room for a little bit of water inside the stem at the bottom. Picture a big 'J' with the bowl on the shorter end, the opening you pull from at the higher end, and water filling the curve at the bottom. The bowl is a standard 14mm frosted glass joint rather than a built-in bowl, so I can swap bowls between it and my bong, there's no carb hole to fuck with, and it hits like a BEAST. You can lay it down on a table with water in it. And best of all, I could have one done in custom colors for not much more than I'd pay at a local headshop for their shittiest cheap-o bubblers. Knowing the glass blower for the win! I think I'm gonna get myself one when I get back from my xmas/new years vacation.