What mostly everyone else has said:

NEXT LEVEL
memorial address
(miss)understood

I also feel inclined to say GUILTY and RAINBOW. But that's just me being nostalgic lately and going back in time to re-listen to some of my favorite "old Ayu tunes".

Thanks guys :)

Only reason I don't want to do a compilation is because I don't want the feel or concept of a full album to be lost, that seems important.

But I think I may go with NEXT LEVEL, MY STORY, and (miss) understood :)

depends, if he likes the electronica the most, NEXT LEVEL, if it's the sad songs Duty or GUILTY or for both mixed (miss)understood is close in genres.

^^Yup! Thanks!

definitely Memorial address!
i can think of nearly every one of ayu's 'song types' on this album: cute-like,, annual summer song, rock, ballad, unclassifiable pop.

Also missunderstood
it's nice for the musical variation. there are some epic funky songs, epic rock and very angsty/emotional ballads. whats not to love?