It's somewhat subjective and a matter of personal preference but I'll give the rundown. Bongs: IMO they get you the highest. They conserve weed well and are less harsh than other methods of smoking. The disadvantages are they're not very portable unless you go for a small binger. And even though you can hit it dry it defeats the purpose of a bong so you always need water around. Also unless you get some real thick glass at some point someone will probably knock it over and break it. Vapes conserve weed the best and the high lasts longer (usually) than smoking but not as long as edibles. But you don't get as high imo from vaping as you would smoking or edibles. Also since there's no combustion no tar will get in your body which is a big plus. Spoons are a work of art and VERY portable. Want to go hiking or smoke on a mountain or just about anywhere and still get good efficiency out of your weed? The spoons your best bet. The cons are that they're a bit harsh since they are small and without any water cooling, but it's not bad. They still get you quite a lot higher than joints or blunts but not quite as high as a bong.