These are my own observations, and results may of course vary slightly depending on who you ask.

A joint will use a lot of weed, but not get you very high. I mean if the weed is good you'll feel it, but I say joints mellow me out more than some other methods, which probably has mostly to do with the fact that you don't tend to take massive hits and instead smoke it slowly. If you want to get the most out of your joint, smoke it like a chillum, because it will hit you harder that way. But your hands will stink even more. Whic leads me on to...

Chillums, and other small pipes that give you just a hit or two. More effective than a joint and will probably get you slightly higher than joints if you use the same amount. But that requires a lot of refills, because just filling it once and then be done with it won't get you very far.

For the reason above, you might want to up the size of your paraphernalia a little and try out a regular pipe, which is my favourite method of smoking, such as a spoon or sherlock. They can get you pretty damn high if you take some decent hits, and the bigger the pipe the easier it is to take large hits of course. This is something you'll probably notice, size matters. For one, more weed obviously gets you higher, but the bowl size isn't all, because the shorter the time you smoke said amount in, the higher you get as well. And a large piece will, as I said, help with that. For that reason, a hammer pipe or a steamroller are excellent choices (if you want to get blasted that is. If you just want to take it slow and chill, a regular spoon is probably the wiser choice.)

Hammer pipes are sometimes equipped with a steam to turn them into bubblers, and as with regular pipes, size matters with waterpipes as well. A small bubbler will be smooth, but i can never hit you as hard as a 60cm bong. There are also a ton of other things to consider with bongs, such as percolators and ice notches, and while these things won't get you higher, they will make it smoother to help you take even bigger hits and get even more high. The bong is my go to choice when I want to get really high, because it provides you with huge amounts of smoke in a short timeframe, thus hitting you hard in the face.

Last but not least are the vaporizers. They are easily the most healthy option, and also the most effective because they get you high on very small amounts of weed. The high is very different though. It's strong, but I'd say it affects me similar to a joint more than anything, it's a pretty mellow and clear headed high, and it tends to make me zone out a lot more rather than just get stupid like I would with a bong.