Bitcoin is now the very first, because it is the best crypto currency that gives hope for a rich future. He is growing very fast and has already made many rich.
And i also think that bitcoin power nowadays because the price of bitcoin is the highest in all kind of coins and because of that many investors will invest their money in bitcoin because they believe that they have future in bitcoin.
the strength of bitcoin is not located in bitcoin prices, but the number of users and countries that still use bitcoin so that the bitcoin price becomes high