Put more into stamina in the ratio of 1 health/3 stamina
Do not put a single level into Stamina, as foods can be used to give you stamina regeneration and you only need 1 point of stamina to use power attacks. --- Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn.
Your stamina directly correlates to your carry weight and the amount of time you can sprint, it is far from useless. I wouldn't say you'd need more than 350 stamina on a character though.
For all of my warrior characters that used Restoration, I'd cap my base magicka at 150, my stamina at 300-350 (giving around and extra 100-125 carry weight) and then everything else into health.
With 75% reduction equipment on restoration spell cost, I had no trouble casting 4-5 Grand Healings mid battle if I needed to. --- Zelos Wilder: "Demon Fang! Demon Fang! Demon Fang! Damn, I must be a genius! Double Demon Fang!"