Most of the ones in there I haven't even heard of. But Ripple could easily outperform BTC in my opinion.
Only for a short time maybe. Altcoins can't compete against bitcoin in the long run. If you are after quick pump and dumps, any altcoin could outperform bitcoin. If you extend the time frame to like 4-5 years, bitcoin will always outperform anything else because its competitors will either go scam, vanish or people will just lose their interest in them.