In trading all of that altcoins you mentioned means to me since in trading you need other altcoins to make your profit large and you can earn more better than your investments. But if I have to choose if bitcoin or altcoins I would probably choose both since they all have no stable prices but to clearly understand it with you bitcoin has the big potential of all other cryptocurrencies but if you are into trading also you would also choose both of them.
yes I am also agree with this that bitcoin is the highest currency and we can say that bitcoin is the best currency among all the currencies as the price and the bitcoin investors are increasing rapidly and we are so sure that soon the price of the bitcoin will be more high and clear as compare to the other currencies so good luck to the bitcoin for further improvement.