For all years, Bitcoin is the trusted one, that can explode highly and significantly from a bearish market to a bullish market. It's followed by Ethereum which also can survive and rise up from around $150 to $4,891.
Does it mean that most top coins are the best choices? but exactly it is not for all top coins, only some certain. But for those two cryptos, no doubt. For other altcoins, we must research more, moreover new coins?  No hope and a very small chance to survive and explode skyrocketing without any hype.