Bitcoin. Every other fancy pants tech will be superseded one day. Yes there is no doubt that Bitcoin is the shittiest crypto of them all, but it has a brand name attached to it. Just like gold is the shittiest means of value transfer, it has that lustre and history to it.
Even a million years from now when people are transferring coins via interdimensional quantum entanglement across galaxies, Bitcoin will still hold value because it will be in all the history books. ETH, Ripple, IOTA, et al. will not be in the history books.