Binance is the best exchange because Binance is an old exchange, so they have a robust security system and low trading fees, while Ftx is a fairly new exchange, but I'm sure in the future Ftx will overtake Binance.
The competition will be increasingly diverse day by day because of the growth of exchanges that will enliven crypto and of course this is good news because it will make it easier to find alternatives in the event of something unavoidable, such as costs that may become expensive with the growing price of the coin that supports it.
but it seems ftx still needs to provide innovations that many convenience lovers can accept as a reliable exchange. but for now binance is still the best and will probably be hard to compete in the next few years. will it happen in the future? must first be shown the performance to be made.