Obviously by the 2nd picture it's Ozeki Mai, but everyone has GOT to start referring to them as "Hagiwara Mai" or "H.Mai" vs "Ozeki Mai" or "O.Mai" ...Maybe Ozeki Mai could be... "O.Mai-Gosh." xD ...but srsly, it's really confusing.
NoBerryz,NoLife. Please people, I'm a "he" not a "she".
I just call her Ozeki. I only call her Mai if the topic was already about Country Girls.
Girls with unique surnames are much easier distinguish. If two girls have the same surname, then either go by their first name or their nickname. Suzuki Kanon and now Wada Ayaka are two examples how I have to go by their nicknames. @_@