Maelwys is basically correct here even though I take issue with the word “sucking”. My Spines/Fire Brute has a high veteran level so I refuse to abandon it as my primary farmer. But I have done a few tests where I stuck my afk Spines/Fire Brute in one meteor map and an afk Stone/Rad Tanker in another meteor map, and the Tanker had a clear map sooner. Not so much sooner that I’m going to scrap my Brute, but it was clear who the winner was.
My Brute also has 3 builds, so I can at least change to a much higher damage active farming build when I know I’m going to be present to click Healing Flames. Though I’ve never tested a Tanker active farming build so I may be taking a slight L there too.