Dude , most of the people will choose Bitcoin of course. Looking at Bitcoin cash I don't feel that people will ever show interest in Bitcoin gold. Bitcoin itself is the best option so far and will always be unless some other cyrpto currency doesn't surpass it.
Best option for what? For you to hold, for you to invest, for you to trade, for you to pay for a coffee? While I also think BTC can't be dethroned, all these forks come from a different NEED of a part of the market. I don't think BTC can be a 'one size fits all needs' of the crypto world and that's perfectly fine.
There's no real competition between Core and the forks (although the forks might want to think so), they are simply different coins for different purposes.