Mine is:
1. Step by step
2. Summer diary / Shape of love (can't decide, both are perfect)
4. Sky high
5. Sorrows (despite the bad mixing, the potential is good)
6. Sayonara (I just can't seem to care about it...)
Team step by step unite! It's such a nice song
I love all first 4 though, and I can't wait for her to sing Sorrows live, I'm sure it's going to sound tons better.
I've already accepted that I usually seem to prefer the underrated songs haha