I've been to Marilleva and to Montecampione and they're both incredible destinations

in Montecampione there was probably more snowboard people than skiers but I liked Marilleva better.

otherwise, if you want to visit a ski destination out of the alps, the three most important resorts on the Appennines are Abetone, Cimone and Corno alle Scale

These 3 places really have a lot to offer including Tuscan and Emilian cuisine that you should really try