As the title says...
For me it's
OUTGROW. OMG I don't know if she ever will release as perfect album as OUTGROW
All songs are amazing and it's hard to pick the favourite from them! Maybe I don't like
Stay my gold the most, but album is still great with this track. Songs from OUTGROW were first songs I've heard from BoA, I'm sure they made me a fan. VALENTI is veeery, very close, but it's something in OUTGROW which I top it higher than VALENTI.