About the Winx Club

#74 (Start of the war)
#75 Coraggio Inutile
#77 Speranze e Delusioni
#78 Kamud il mago
#79 (End of the war)

#68 (Introduction to Roxy)
#68 Magie Proibite (Roxy's crush)
#68 Monstruos de Piedra (more about it)
#68 Celos y Enigmas (Roxy's bf)

Both the show and comics gradually loose quality until it becomes an absolute shitshow. Therefore everything that comes after season 3 does not exist to me. They basically age backwards and the content becomes much more dumb.
The comics up until #100 or so, are good. Later it becomes some 7 year old friendly shit were you get: "cute-evil" furry villains, talking animals, and no hunks.