There is a reason why Bitcoin will always lead other cryptocurrency. Because of its high transaction speed, security and low fees.

Bitcoin is a decentralized digital currency which is not controled by any government or bank. In fact its also the first digital currency that was created. This will lead other cryptocurriencies like Ripple with trust and security issues, as well as traditional currencies because Bitcoin doesn't have any counter argument except for possibly exists!

Bitcoin is in a superior position to other cryptocurrencies because of its development. The value and accuracy of the blockchain is near-perfect. More importantly, Bitcoin has a community that has been growing for over 10 years and this loyalty can show for Bitcoin to have outperformed others as time goes by.