This doesn't have anything to do with your desires at all, but just a rambling on some of the aforementioned comments from other posters and something that you just mentioned.
It is very easy for me or anyone to compare India with Singapore and everyone knows the clear winner. The things definitely get more complicated and the comparison may not be equally easy when you were to compare US with SG. This is the comparison I have been making and evaluating.
It's not an easy choice at all between India & Singapore. From my way of thinking, India would be, by far, the better choice. Singapore has already reached it's apex, sadly. The country is starting to descend into a xenophobic cesspool and have already priced themselves out of a long term future considering the noises that the Y Gen are making against foreigners in general. As Singapore tightens up on immigration, and company's, particularly MNCs, start to move to more hospitable locations, I see the country descending into a long period of stagnation. I predicted this was going to happen over 5 years ago. Last years GE here, showed the Gen Y'ers that they have the power, just not the common sense. In fact, common sense is a rare commodity on the little red dot.
On the other hand, India is seeing the way forward, and is poised for a long period of rapid expansion. As the Indian diaspora is HUGE, there is a lot of intelligent Indians out there that ought to be making their way back to India to be the in the forefront of the great awakening there.
Only my 2¢ worth