Telegram of course. Its token Gram are set to be the killer of Ethereum. TON offers the same functionality as Eth but on the next level, including scalability and speed of transactions. TON is going to experience the same dynamics as Ethereum in its early days but has the better prospects than Ethereum thanks to the existing user base and infrastructure for micropayments in bots that could become governed by the smart contracts. Ultimately we will see certain competition between Libra and Gram, but this is a long shot and a topic for another article.