Intellect provides 1 spellpower and 0.00154% to crit per point. With Mark of the Wild, Heart of the Wild, and Astral Leather Specialization, it provides 1.169 spellpower and 0.0018% crit (555 points per 1% crit, a bit under 1/3 of a crit rating).
Similarly, with these talents, one point of Intellect increases your maximum mana by 17.53 (19.28 with 2/3 Furor), and your regen from Replenishment, Revitalize, and Innervate correspondingly.
These things together make Int the best stat for both HPS and mana.
But hey if you want to keep being wrong while complaining about whats wrong with WoW, by all means, I thought I'd try to help out.
You sir/madam put waaaaay to much time and effort into this game. Please, please please put down your scientific calculator and go outside to play. Oops! Look your dork is showing.