Ultimately the better player will win. We can look at these competitor chains as our challengers, and we can only defeat them by becoming better ourselves.
Its not a case of being better. IXCoin is not in competition with Bitcoin. There's no reason the 2 currencies cant exist side by side as silver does with gold.
A number of flaws with that analogy, silver and gold are not currencies. Silver and gold both have separate qualities that make them useful on their own (industrial applications and so on). Both have physical properties which make them intrinsically valuable, and are distinct from each other.
None of these are true of Bitcoin/IXcoin, both are attempting to become currencies, they have no real intrinsic value aside from their suitability as currency (by design), and there is nothing distinctive between the two, other than the rate at which they are generated. Hence they are of course going to be in competition with each other.