I only bought her first 5 albums - on cassette ,back in the day (plus the live one).
Her debut is one of my fav albums of all time. I still listen to it regularly. Adore every track. Prisoner has always been my favourite - nice to see it getting a mention by other posters on this thread already. I always wish it had been a single too.
Years later, I re-bought 'Mariah Carey', Emotions, and Daydream on cd.
I didn't like her Merry Christmas album (and I love Christmas albums - just not hers),and only liked a couple of songs from Music Box - so didn't buy either of those again,on cd format.
For me, her earliest stuff is the best.
Totally lost track of her after Daydream.
I bought her Greatest Hits (the one with the butterfly) to see what I thought of her up to date material,but it wasn't for me,and gave it to a charity shop.