I obviously prefer the wines from Monferrato, my region:
(
www.it.wikipedia.org/Monferrato
www.en.wikipedia.org/Monferrato
www.fr.wikipedia.org/Monferrato
www.nl.wikipedia.org/Monferrato
www.de.wikipedia.org/Monferrato)
Barolo, Barbera, Dolcetto, Freisa, Malvasia, Grignolino, Nebbiolo (red)
Moscato, Cortese, Brachetto, Asti Spumante (white)
I also like wines from Sicilia (Nero d'Avola), Valle d'Aosta (Torrette), Veneto (Prosecco), Toscana (Chianti). I have not tasted much foreign wines (few are as good as Italians), apart from wines from the Rheingau, which I found very good.