So I said best overall. For this let’s say that means it is good in fighting, casual day-to-day stuff, and being useful while traveling the cosmere, which I have a feeling will be very important later on.
now duralumin stores connection. Nice for day-to-day life, since you can form bonds with people easily, as well as be less existent to others when you want to read. I can see it being useful in combat by either almost fully storing it or almost fully tapping it. It isn’t too efficient with that, though. Useful across the cosmere is definitely yes. It is very useful for that. I would say it is a pain to store sometimes, though.
brass stores Warmth. Useful in day-to-day life, not so useful in combat. It could be useful for general travel, but the cosmere, with all the scary stuff in the cognitive and dangerous beings? Not so much.
Bronze stores wakefulness. That is useful in day-to-day life, but again, not too useful in combat. It is useful for general traversing, and it will help you travel longer, but not easier per se.
now steel might be a challenge. It is useful in day-to-day life, and DEFINITELY useful in combat. It is probably the feruchemantic metal for combat. Traversing the cosmere is also a lot easier. Now, storing is a bit tough, since you go really slow, which would be a pain. Now since it is really close, I will bring up F-tin’s forte. It combining with other magic systems. Steel is a very useful metal on its own, but mixed with other things will not create something amazing other than really fast stuff. You would be able to quicken aons, which is fair. And there is plenty of magic systems that can allow you to store speed without much of a penalty. Otherwise, when you combine a magic system with F-steel, it will not give you something extra. F-tin on the other hand, has tons of reverse compounding things with other magic systems, which would allow for savantism-in that aspect. Tin has so many things that can be stored that you basically can have a metalmind for every scenario, even on its own.
cadmium stores calories. It can be useful in day-to-day life, but not so much for combat. You can’t do too much with calories in combat. Traversing the cosmerewise, it is pretty much like bronze. Less need for stops, doesn’t make the obstacles easier.
cadmium stores breath. It isn’t too useful in day-to-day life, isn’t too useful in a fight, unless it is a stealth thing, and is not useful for traversing. I’m interested in why ya chose this one.
gold stores health. It is useful sometimes in day-to-day life, but only when you are hurt. It is definitely useful in combat, and will be useful no matter where you are. It has the downside of storing being really annoying. Being sick is not fun.
copper stores memories. Quite useful in day-to-day life, not too useful for combat. Useful for remembering things in the cosmere, though.
zinc is good for day-to-day life, useful in combat, and hmmm. It has the drawback of not being fun to store, sadly.
Now to tin. Tin stores senses. ALL the senses. It is very useful for day to-day-life, in combat, both for noticing things that are attacking you and when you store pain. That is going to save you a lot in battle, especially from dying of shock. Traveling the cosmere is a definitely yes. It mixes with a lot of things and helps you be more aware of dangers. It also has the upside of being relatively easy to store, and many times, useful.
I’m glad that I got to do this thing. I dunno whether or not you are trolling though.