Before my shift to 5-string, the Warwick Corvette Standard 4 was my favorite bass. Mine was older with a Wenge neck. It was passive with single-coil MECs. I switched those to DiMarzio Model J's and found myself in bass tone and playing heaven. I sold it when I switched to 5ers.
Many basses have come and gone since. The Corvette Standard 4 is the only bass that I miss and have regretted selling.