If you could only go all in one one crypto, but couldn’t touch it for ten years, what would it be (and why)?

I think 99.9999% of us in the sub wish we could go back in time and load up on $5 BTC, but that ship has sailed. You cannot go back in time, but you can change your future. If you have the ability to throw a large sum of fiat into one crypto, what would it be?

I know you should DCA and should not put all your eggs in one basket, but if you had to go long on just one crypto, what would it be (and why)?