Classes fix suggestion

I have all 3 classes myself, warrior at lvl 15, mage lvl 10 and my rogue which is 16.
Here is what i think...
To be a great tank you need WAY TOO MANY HEALTH POTS. No matter what people say about warriors being OP they dont realize that we spend a lot of gold buying pots.
Mages just like every game they are good but i am not sure if they have mana shield but if they do they should be ok.
Rogues, my favorite... I think we need more mana because we cast skills too fast that we run out of mana so damn fast.

Also, i have seen warriors with 500+ armor and 2800+ health so why not give more dodge per every dex point to rogues? We die in 1 hit really? Not saying nerf warriors but instead buff rogues and mages?