My favorites "Classicvanias" (as opposed to Metroidvanias) are Rondo, Dracula's Curse and Bloodlines.
And I'll have a controversial opinion there but I think CV4 pales in comparaison of these 3 games. It's slow, the colors are washed out, the games has a lot of slowdowns problems and the more ambiant style of music is not really my cup of tea when listening these 3 others game that have so many bangers to offer. Of course I wasn't around there in 91, 92. I only got the SNES around 96, 97, being born in 89 so I never experienced this game with child eyes, but I still don't enjoy CV4 as much as the others 8/16 bits titles.