By Your Side
No Ordinary Love
The Sweetest Taboo

Soldier of Love

So many to choose from!

But Soldier of Love does it for me every time. Brilliant!

One of the best UK artists ever

Standard Your Love is King

Paradise. Fantastic song.

Is It a Crime
No Ordinary Love
Paradise

Smooth Operator

Love is Stronger Than Pride
Paradise
Haunt Me
Lovers Rock

It would be "Why Can't We Live Together" although I prefer the Timmy Thomas original. I do have most if not all her albums, though and managed to see her in 1985.

The Sweetest Taboo
When Am I Going to Make Living?
Frankie's First Affair
I Will Be Your Friend

I like her a lot but my favourites are her slightly more uptempo songs, Paradise & Sweetest Taboo..
Paradise takes the crown.

Smooth Operator and Your Love Is King.

Robert Elms (BBC London) and Sade were once an item. He once told an anecdote where he would watch Sade jotting down lyrics in a note book while she was lying on their floor rug. Those lyrics became Diamond Life. Witness to history.