It was a good idea, I just think it's a bit like rating a play via which act was your favorite.
I do like the Zathras character(s), so I'm pleased he shows up again. One of them shows up again. Something like that While watching this tonight, perhaps for the first time I thought maybe that scene of him and Ivanova talking goes on a little too long, with no real purpose. Other than entertaining the audience, which I suppose is a legitimate purpose for a scene in a TV show.
I'm the other way around, for some reason the Garibaldi plot resonates with me, while I think the Ivanova/Zathras scene is a bit silly and overplayed.