Assuming that the recent dip in the cryptocurrency markets (especially BTC) isn't the end of this latest bull market and is simply people cashing out for Christmas (to return after Christmas and drive the price up again), then I suspect SpectreCoin (XSPEC), BitCoin Cash (BCH), and LiteCoin will do well (with XSPEC doing the best).

My reasoning is because:

XSPEC is a solid privacy coin that's very undervalued, largely because the community and development team have been focusing on putting out quality technology instead of marketing for quite some time now. Their endeavors have born fruit, too, give their full Tor integration with OBSF4 so it'll work in countries that normally block Tor, the recent incorporation with BISQ, and a lot more. You can learn more about it at their CoinWiki (in my signature) and even at their Slack channel.

LiteCoin is BitCoin Lite, and people who are just getting into cryptocurrency, such as because they just watched something on CNN or talked with a friend one drunken night, are going to reach for it a lot like how people who can't afford gold reach for silver. For this reason, I think LiteCoin will do well.

BitCoin Cash is doing well, and will do well, because its transaction costs and confirmation times are much lower than BitCoin Core's. BCH shows greater promise of being used as a medium of exchange for everyday low cost purchases. For this reason, if BTC doesn't change, I think BCH will eventually surpass BTC. In those places that don't experience a hostile regulatory environment, BCH will likely do very well.

With all that said, in the event of a government regulatory crackdown, which I think is going to happen sometime in the future, the privacy coins are going to be ones that have the greatest value. It'll be the privacy coins, after all, that best protect their users from the regulators.