IANAL but the state that you choose to organize in won't have much bearing on how much income tax you owe. You will owe tax based upon the state(s) that are your legal residence.
You must pay taxes in every state in which you are incorporated/organized/chartered AND where the corporation actually resides (headquarters, major offices, etc).
How is it determined where the corporation "resides"? I know for a physical company, it is where ever I am physically located. But what about a purely online company?