Which will be the best Cryptocurrency in the first 3 months of 2019
XRP maybe I guess? And bitcoin cash SV and ABC. But the mainline is still Bitcoin and Ethereum. Since Eth will going to have some hardfork later, it is expected to have a huge market value since many will going to invest on it.
I believe there is always an investment to be done on Bitcoin which will be profitable anytime. Apart from that ETH is one of the good altcoin to look into it but there are people are saying not to opt for ETH but i hope ETH still has good value. XRP is growing fast but somehow it is bit centralized in nature so go for investing in all of these coins partially.