.... which one you would like to choose if u only have the choice between BTC and IOTA?
If i really had that amount, then I would really be cautious enough to choose the coin where to invest.
I mean 10 USD is a small amount but still money is money.
So the real question is where i should invest? I would say that i will invest in BTC only.
The reason is clear and straight, as BTC is stable compare to rest of the coins. So if the price went down then it would not be a huge loss.
Hope you get your answer now.