Here is a great pre-pre-theorycrafting article from Tamriel Foundry. Now while I rarely have the time to get into heavy build crafting I do think some important ideas are brough forward in regards to resource management. Take a read!
Everyone has a set amount of resources they’ll be able to devote towards their character, and you simply won’t be able to excel at everything in this type of zero sum game; every resource my Templar dedicated towards defensiveness and spellcasting was a resource he wasn’t able to put towards improving his stamina and weapon attacks. It’s an economic game of choosing what’s best for you with the limited resources you have, and it’s a lot of fun for us strange people that enjoy that kind of thing.