Tron is still not bigger, but the decentralized network is currently seeing action compared with Ethereum. Both networks have been doing between 500 and 600 thousand transaction every day in the past six days. On the Tron Network the transaction are mostly smart contract being triggered, for example for voting on Tron representatives and freezing TRX in your wallet.
Ethereum is still a bigger name. There are hundreds of ERC20 tokens that make use of the network. With games like Cryptokitties and several upcoming games, the network is still considered a household name in the crypto community. But Tron is trying to take over and has several new dApps coming up in the next few months.
Ethereum has been used by many ICOs. With the market decline happening, many projects decided to cash out. This made ETH drop almost 90 percent in value in 2018. Tron experienced a similar drop-off in value, but is just now developing its platform.
The Tron Foundation bought BitTorrent this summer, while Tron also launched its own main net. This makes TRX one of the few tokens to leave ERC20 behind and start working on its own. CEO Justin Sun has major plans for the Tron Network as it should tie in into all aspects of our every day entertainment.
At the same time Ethereum is awaiting the launch of its next major update, Constantinople. This should happen in the first quarter of 2019. This update should make it easier to develop on the Ethereum blockchain.