Although TRX is very popular coins for its cheap transaction fees, huge potential future, voting rewards in wallet, supporting Dapps and for other facilities, it can't be compared with Ethereum-the king of altcoins. Ethereum is more popular, more demanded coin, and most popular for either trade or hold. TRX can be compared with other altcoins like XLM, XTZ, XRP, ADA etc but not with ETH.