Nvidia or AMD?

Here's the meat of it. I want to start mining RVN, but I don't know which card to mine with. Are Nvidia cards better at mining or AMD? What are some of your setups on here?

For those who do or have mined RVN, what are your recommendations?

Also, is it better to hodl or sell-off?

I know about the prices of GPUs, so don't lecture me on that front. And yes, I could buy coins, but I want to get into mining RVN and go at it for a long time.

Thanks for the incite and help. 😀