Probably I'll buy bitcoin. Since it is the top 1 on cmc . Besids it was more acceptable and popular to most of merchants that accepts cryptocurreny.
Bitcoin would be the best option for anyone right now seeing the surges in its market values. But I would rather invest some $10k when the market value is the lowest. The reason behind it is purely making use of the down cost scenario and that is the best an investor can do to get maximum profits. Anyways, speculating in ETH and Bitcoin with $10k would not be a bad move.