EOS is basically a cryptocurrency token claimed to work as a smart contract platform for the deployment of decentralized applications. It aims to support industrial scale applications, eliminating the transaction fees. The claimed transactions are around millions per second.
The reasons why EOS will outnumber the odds like ETHEREUM, QUANTUM, STELLAR are basically it has overcome the drawbacks and issues of its competitors.
The first issue was the inability of previous technologies to reverse transactions once made but EOS extensible permission system allows to recover an account whenever the keys are lost or stolen.
Another serious problem was using proof-of-work to secure the chain increasing its cost to a greater extend which has been encountered by EOS using distributed proof-of-stake to reduce its running cost, benefitting the users to saving the energy resources.
EOS benefits its users by making the transaction free for its user rather than deducting transaction fee as done by other competitors. Rather than that stake some of the users coin, which can be recovered the user making the application free from any fee. The miners are compensated through some other way rather than paying them per transaction.