so far my mage is owning, I'm only like level 8 or so but I haven't really had a need for any extra health. Do you ever need health? or can you go pure Magika? I know Stamina is pretty much a waste so I haven't bothered with it and don't plan to

I'm doing 3:1 ratio on my mage. But I don't think I genuinely need even that much. At the same time, I have more than enough mana, so I'm not really losing anything.

Well, three is the magic number. Therefore, I support Tale's idea.