Mei Mabui and 1010 will give you the better overall results, and the fights will be less close. When you get countered though, you will get countered HARD.

Mei Ao Chojuro will have you struggle a bit more all around and have closer fights, but grants an extra degree of control, especially against mystery field changers like hashirama.

Both are solid. I personally have more issues with the ao/chojuro teams while the mabui teams are piss-easy to counter, but the mei/mabui/1010 teams do seem to put out noticeably more damage.