/g/, please throw the absolute best bang/buck phone at me.

I have researched all day but i find it impossible to make a choice since i don't know much about phones, yet want to make the best deal.
My Galaxy S2 is starting to become too painful to use at this point. I need something i can use for years to come that is worth all the money. Android is prefered.

Pic related is what i'm thinking of right now.