I had been using both services over the past year to help me with my time management, much like yourself. I have an XBOTLITE playing my CL GF silver league deck in wild gold 1, I was playing archmageA with my main GF champ deck in wild, and currently archmageA with my RF CL gold deck in wild gold 1.
Archmage got my main to wild champ 1 with 3 days left in the season, so I turned it off and have been playing human modern ever since. I don't really compare the winning % of the two different bots since they play different level cards in the wild gold 1 league. However, based on your thought experiment I could swap them to the other account to see which performs better given the same pool of cards. I think I will try that after a full season with the new modern bot ban.
Thanks for writing this article and sharing your experience.