Welcome, Samoro.
I used to ski the Dolomites a lot in the past, say for about 30+ years, at least one week long vacation each year in Alta Badia or Plan de Corones or Val di Fassa.
Was in Cortina two seasons ago, early in December for a quick two days technical update, not much was opened as pistes go. Although I liked the town very much, it unfortunately reminded me of a quote from the much watched, much loved movie "Aspen Extreme" (guess which one? ;-) It involves credit cards and language... :-D)
Nowadays I ski mostly in Lombardy...