i would prefer euros or the pound! as the exchange rates for those are better than the dollar! but then finally i need in the INR so that i can use it till now most of my transcations have been carried out in $'s
i use usd online and GBP offline $ are the commonly accepted currency online unless you specifically deal with someone from your country outside of the us.
If I am dealing with an Indian, certainly I transact using Indian Currency since I am from India.But if I have to do a business deal with a foreign client, I would then use US Dollars as the only good option.