Basically, ballads, not upbeat tracks are the strongest side of that album. I'd never, NEVER supposed BoA to sing those songs.
x10000 for her and all people who composed those tracks I mentioned earlier.
HURRICANE VENUS is really the catchiest and "most succesful" off that album though, ideal song to promote that album. Only one song which I didn't like is Let Me, hope it'll grow on me.
Okay, maybe there won't be anymore a better album than Girls On Top, but HURRICANE VENUS has the second place. This is the Queen of K-pop y'all.