I don't know which I'd pick to be honest. Right now I'm more into smaller altcoins. I think the highest priced coin I might invest in soonish is Stratis. But I might one day go for some ETH. But I am more than certain BTC will always remain highest in value, but just because it remains highest in value, doesn't mean it is always the best to invest in.

Anyways, thanks for sharing! ~Upvoted!