Love Songs.
Rock 'n' Roll Circus isn't too bad either, it has some good songs like
BALLAD,
Don't look back and
You were.... I also liked the PVs for those three.
However,
Love Songs is better to me. I like it's covers more, it's theme and most of all: it's consistency. The songs flow and blend together well. I simply love
Love Song,
Last angel,
do it again,
November and
Virgin Road, also the PVs are cool. I'm very happy with it

.