Do you have a favorite? Is one empirically better than another? Or is there a better place to spend wizard tokens all together?

I used to vend a lot, especially whenever new items came out. But they reduced the rarity of what you get from the machines and at the same time, increased the rarity of new items so you almost never get new items from them anymore.
In my opinion, unless you're a new user, or you have a lot of gaps in your collections, they are not worth it anymore. Oh, or if you still need the achievements, but I got those eons ago.
Ocean's Depth still has the highest rarity, so I vend there if I need to - like for drills quests or when they open the Freyalise shop. I used to vend at Blue Sky too, for the books for library quests, but again, the lower rarity books are pretty easy to get in shop and the vending machine doesn't give out higher rarity books anymore.
These days the only place I use wiz tokens is the token shop. I save them up for blackheart hollow too, but there's almost never anything there.
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Aw, thank stinks! I am new, so doing stuff for my collection would probably be easiest. Thanks for letting me know!

SubetaLodge has a Vending Guide that shows which shops vend where, keywords and other info so you can target specific machines for which collection you want to work on.
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Ocean Depths typically, but Celebration Gift is also pretty good for vending food which usually sells decent for sP due to Gourmand achievements. When new wears come out, Dragons Hoard is also pretty good
it depend,i like the one in the artic idk the name though xD