Among the coins listed, probably ether and ripple have the closest support community to btc. Though i'm not saying it's close at all but comparing the other alts, these two would likely be battling for the number 2 spot. Of course btc will be the top coin for a long time.
The fact is that Bitcoin has reached such a level that no one can match it in terms of capitalization and pricing. Although there are quite weighty arguments in favor of ethereum, as the leader of the cryptocurrency market. This is a very serious application, and I am inclined to believe that whoever will be able to implement this opportunity in the future.
I think that, first of all, scaling the block chain will bring etherion to a new level. Moreover, the announced updating of ethereum will in any case increase the capitalization of ethereum, because investors will be eager to invest their money in ethereum. On the basis of but it is possible that ethereum will occupy the best positions on the coinmarketcap.