Only mining raven in the new year

TL;DR short story and looking for more experienced holders advice.

I only have 2 rigs, one is serious-ish (185 Mhs eth) and one left overs for fun ( 25Mhs Kapow). I've been big into rvn for awhile and have even exchanged 50% of my btc into rvn. (Yes, I buy and exchange crypto, not looking for another scammer)I was lucky enough to know to do that when rvn was like 5 cents and so on.. blah blah. Whatever. I am going to keep going into rvn, but how does everyone feel about it? It's starting to feel like an ethereum substitute to me.. Which could be good?

Proof of stake is starting to feel like the way of the future and I never believed that before. Can I get some good counter arguments?