Ravencoin has always been a bit of a darling to me. I like that it seemingly had Overstocks support at one point and had paid developers working on it. Ive never even heard of Ergo, so I assume its just another shitcoin with a large advertising budget? If it were me and I had to choose between holding those 2 coins, I would mine a more profitable coin and use them to purchase RVN. Better would be to use a site like NiceHash and stack sats
Do you love hot algorithms?
I have always chosen those coins, the mining of which heats up video cards less and has less electricity consumption. Ergo miners have been mining for more than 3 years and the mining algorithm does not overheat video cards much, but I dont know which coin is better.