The quality control in the 90s was quite stellar. There is not really a bad song. Say what we want about Tommy, but he knew how to cut the crap.
Certain songs mentioned so far I adore. Triumphant in all its forms came at a point in my life when I needed it. I will always rate it 10+. I love Meteorite. I see this issue with The Art of Letting Go, but I love it all the same.
For me, the absolute worst stuff came either during the Charmbracelet era (most of that album is offensively beige), certain tracks off Me. I Am Mariah, and then everything released post that album and Caution (Infinity, I Don't, The Star all being terrible).
My most notable skips would actually be Shake It Off and Get Your Number. Her two biggest hits that I just do not like. Too much Jermaine Dupri, and that awful MDF-quality mid-00s hip-hop production.