There is no difference.
Why is the Crown store still asking me to buy smaller DLCs when I've bought ESO plus? What's the difference?
stamina and magicka are more generalised now since you highest stat of your spell/weapon power and highest magicka/stamina pool will be the one contributing to your skills. Having higher weapon power than spell power will mean that all your skills scale from weapon power and none from spell power. Main difference will be weapons you use staff vs dual wield/bow in pve, morphs of skills you use and the item sets, light vs medium armour. For me tanking have been hybridised for many years since it has never been about your dmg or healing output that much. You use both pools equally, I lean to use more magicka resource skills on average.What's the difference in DPS and Tanking for Magicka DK vs Stamina DK?
Your lower lvl gear will become less potent the more you lvl up. If you have 5 pieces of a set you can use it for many lvls though. 10-30lvls or more depending on your wants.Should I always be wearing the highest level gear that's dropped for me? Even if it sacrifices certain stats? Or can I get away with lower level gear with better stats? Will the lower level gear become less useful as I level up?
Depends on if you want to use more stamina or magicka. As in if you want medium armour or light armour. Look up content creators if you want to see what they wear or try to experiment yourselfWhich armor set should I ideally go for if I want to be able to solo endgame content as a DK?
Crafting consist of smithing(weapons&heavy armour)/clothing(light&medium armor)/woodworking(staves&shield)/jewelery/enchanting. You can do all those on one character if you want. Endgame gear consist of both dropped gear and crafted gear.Are endgame armors made through crafting or smithing? What's the difference between the two and how do they, if they do, intertwine?