Bitcoin and if you ask me why i will answer that bitcoin is more flexible than gold and for begginer it's also better, so bitcoin is my choise.
Yeah and people who are already using bitcoin will surely invest their money into bitcoin at a moment as they are aware that bitcoin can make them rich in a short period of time.
What is your definition of rich? $1000? $10,000? $100,000? $1,000,000? Get rich quick times are over for the average person here. Only whales with +1000BTC can make a lot money in a short time.