Even in stocks with all the reports, company profit declarations, nobody knows when is the right time. In my opinion, Bitcoin Cash is fast yet low fees, that Litecoin tried to be but never able. Litecoin don't even have a smartphone app (that most people choose to use, there are a few average kind) the de facto app. Then looking objective, Dash is very well made, they have low fees, they have a masternode system that protects from many things bitcoin trying to fix - malleability, transaction speed, even having a democratic governance system (you can vote) to approve projects. Their developers get paid by the mining. So no in-fighting nor very ugly disagreements.

The general point: if you have these and don't need money for the time being, just keep them. Plan ahead how many months you won't require these funds. Then try to stick with keeping them.