If you are a big fan of some one single currency and you are quite sure that this currency will boom in future due to such a great concept it has or whatever the reason is then I think you will be better if you HODL it. But if you are of an opinion that every crypto is shit in long term but can give a good gain daily then scalping is your cup of tea. Scalping requires much more headache while hodling is quite soothing option for many.