Both are, essentially, yuri. Both have heroines who are best of friends, and openly explains how such events take place.
The personalities of the heroines two are identical; one is sophisticated, talented, different, and the other is closeted, pretty, but otherwise normal.
The majority of the show is donated to flesh out their predicaments only for them to come back to their bond.
Both look good, and sound fine. Both could be enjoyed fairly well by non-yuri fans.
Revolutionary Girl Utena, is more "revolutionary" than Miko. It discusses a handful of social topics, some normal, some not.
Many of them are channeled outward into