You should buy ETH because the TRX is a shark that pumps lots of discharge. You have ETH you can buy many other altcoin
My suggestion is also to go with Ethereum because this coin has more survival strength and potential to grow. Though Ethereum is a slow in making progress but in the world of altcoins, this is the only coin that returns big profits.The best thing about it is that it is available at cheap rates.If someone fails to decide, he should then go with diversification and invest bigger portion in eth.