The topic should be moved to
https://bitcointalk.org/index.php? board=67.0
Top altcoins? Like from the top 100? Top 50? Or what. The top altcoins are no benchmark for your safety.
What you are saying doesn't make any sense, top altcoins are top on the list on websites like coinmarketcap or coingecko because they earned it, Bitcoin is the first because it carry the highest marketcap and it's the most popular and most used of all.