Both are awesome choices.
Matsu is techy with giant two natural pines so she gets my vote.
The only thing that puts me off about Matsu is that she's sneaky and way too forward. Kazehana is forward too but hers is a more flirtatious and seductive manner. I would half expect Matsu to suddenly scream "LET'S BONE!". Tsukiumi is just the very strong girl but very sensitive underneath and there would probably never be a dull moment with her.