It's gonna be bitcoin for sure. It cannot be stopped anymore, no way. I think it will reach $1M (per BTC) before Christmas this year, but the long-term value is not so high.
Woah steady there cowboy..
I do not think bitcoin can handle that amount just yet. Sure it might look into 4 digits, but we need a lot wider availability and recognition before we can even talk about 6 let alone 7 digits.. Sure WU could be a big factor if they take the right measures, and I'm pretty sure that the bitcoin ATM will also have quite an impact. That being said, what makes you believe that it will hit the sky so soon? (I'm leaning towards high-end 6 digits in 5-10 years)
. All of it.