[tommasi]

Michiko is rather old-fashion and the current trend in Japan is to move away from names ending with -ko.

I think Sakura is good one but I think you should also think about ease of pronunciation as well.

According to Meiji Yasuda Seimei, the health insurance company, top 10 names for baby girls in 2007 were:

1. Aoi
2. Yuna, Yuuna (Youna)
2. Sakura
4. Yui
4. Hina
4. Haruna
6. Nanami
6. Misaki
8. Miyu, Miyuu (Miyou)
9. Hinata

I hope this helps. Good luck!!