This depends on individual perception and differences, some people perceive best coins from those coins which have really appreciatein price, others perceive best coins to be such coins that have achieved a higher level of project development even though it has not reflect in price just yet, however, i will rather stick with those coins who can survive long term of which btc is top on the list.
Agree. It depends on you, and depends on your budget as well. If you have so many money or have some big earning better to buy btc and let it on you digital wallet for awhile and it will pump once market goes in a bull run. XRP is second best for me, because of its current price now and the very fast transfer of XRP is still amazes me.