every cryptocurrency has its own strength and weakness which may lead to its succeeding point. in short every currency has its goal to succeed in their design there is no best cryptocurrency to invest in because it has its own season to level up.
of course when we invest we must be good at choosing the best coins in the future and have good development. and certainly a lot of coins that have high prices and pretty much like bitcoin, eth, litecoin, doge, monero, eos and others.