seeing the current market conditions are very unstable and I see no growth in price values for ethereum and stellar which is very good, but every day the two coins actually fall in price. whether the two coins are good for us to invest
I'm surprise that you considered it good when there is no growth, that's pretty rare, I don't know, maybe you are happy with the price of these 2 coins at dip? Anyway, I love these two coins for long term investment, but if I have to choose only one, I'd rather go with ETH as it's more popular and it's more undervalued now.
What I observed about stellar is it follows when Ripple is performing positive, so until Ripple starts to recover, I don't trust it will.