Man, it really is a tough one to answer. From a practical point of view, it should happen tomorrow, but who knows what will happen when Lightning Network will be implemented.
I do believe that both of them will go up this year, but BCH much more in terms of percentage. Lets say that BTC will close the year at 100k and BCH at 30-40k.
BTC is still my largest holding althogh my other coins are getting closer by the day.
So, when did you exit ETH?
I got out of ETH around $1320 (Kraken) and bought some EOS and a X2 margin trade on ETC.
Look at what happened with https://raiden.network/ Almost nothing happened. I'm sure LN (Which IMO a joke taken too seriously) gets out the hype BTC will have some gains. It could even trigger the next big bull run in BTC. But personally I barely even touch the coin. The results of my actions have been mixed.
I agree with your BCH prediction. I do have a hard time thinking of 100K BTC unless it immediately falls down over 50% like TRON did. Either way percentage gains always happen in smaller coins. So that's where I'm looking at.
BTW how does 20K Dash look like?