Obviously Eth i think. Ethereum is already established coin in cryptocurrency market. Many people changed his life from Ethereum. It’s position 2nd in cryptocurrency market. Ethereum is Being used officially in many sector. On the otherhand Trx is not Super established like Ethereum. But ir also true that trx also good coin. But when i will compare with Ethereum then I'll put the ether on top. Because till now Ethereum is best after Bitcoin.