That seems clear enough with the exception of changing the word "ALL" to "whichever performs the best relative to the USD" and remove the mention of outperforming the USD on your youtube post since as stated $1 will still be $1 in 2 years.
For $10,000 I would be willing to take the other side of this bet while at the same time hoping you win. The only cavaat is that I am not sure I can agree to the charity aspect of the payout.
If Bitcoin outperforms "ALL" of them, then it will certainly have outperformed whichever "one" that performs best relative to the USD.
I think it might be illegal in one of our jurisdictions if the money is not donated to charity, and that is one of the rules for
www.longbets.orgThey hold the money in Escrow until the bet is resolved.