Convince me why mining/stacking RVN vs Ergo is a better choice

I've mined both coins before, I fundamentally like both projects. But it seems like ergo, for the moment, has a more mature ecosystem and more functionality/use cases. Closer to smart contracts, dex, potential to integrate with ADA, etc.

What can RVN do that Ergo can't? Please enlighten me :).

P.S., I know I can stack both to diversify (and I am) but I'm interested in the technical capabilities of RVN to make more informed choices.