Usher has so many GOLDEN singles. Him & Mariah are really good at making the best songs singles excluding their current albums ('Good Kisser' and 'Triumphant' being original Lead Singles )
His 5 best albums tracks though are probably,
That's What It's Made For / Superstar / I Care For U / Get In My Car / Show Me
Ugh 'I Don't Know', 'What You Need', and 'This Ain't Sex' are REALLY good too.
Hm, Adorn was my favorite because the production is so restrained and precise while still being striking. The majority of the album feels a bit bloated or overblown in comparison.
Usher has too many good songs to choose the best. My favorites are Climax, Bedtime, Can U Help Me, Confessions Part I, Moving Mountains, etc. Too many gems in his catalog.
Him & Mariah are really good at making the best songs singles excluding their current albums ('Good Kisser' and 'Triumphant' being original Lead Singles 
)
