As I said before, if China becomes a superpower, then it will start acting like a typical superpower. A superpower 12000 kilometers away is far better than a superpower just beside you, that too a somewhat autocratic superpower who is not even answerable to its own people. A very bad idea indeed.
And in that case probably BD, Pakistan and Sri Lanka will need India to keep things in check!!!
This is where I disagree with you!
Chinese will be different to Westerners as they won't go around the world bombing countries they disagree with or need resources from.
Anyway it will be good for the world if there is another superpower as the US has totally abused it's position since the end of the Soviet Union.
India naturally won't like the Chines being a superpower but you need to up your game as you are not giveing them any competition whether economically or military now