Personally I think I would prefer Coinbase as well, just because that seems like the easiest way to onboard people into the ecosystem from the US. Crypto doesn't get much simpler than Coinbase really, and if we want to be a mainstream game we need a mainstream way to invest in it as well.
But given how strict regulation is in the US, I don't know how realistic it is to pass the high bar needed to get on Coinbase. Binance makes a great additional option for that reason (though then US people are excluded, so yeah there are trade-offs).
I worded this proposal so that the funds can be used for one or the other (or both, but I doubt it's enough for both). I trust Clayboyn to judge which has the best chance and offers the best opportunity for us.
I would hope we would go for CB first, Binance second.