As long as the comments have actual substance and are saying something I didn't waste time reading, or even have something to contribute, then yes, I'm all for that. Favorites never have anything to say or do, so I don't care about those.
I answered twice as much as favs. Favourites do show how much people like your work, which is nice, but comments give more detail, whether it be critique or compliments. They're less ambiguous than favs usually.