My absolute favorites are
Massimo and
Adamo, but my other favorites are:
AdrianoAlessioAlessandroCasimiroCosimoCristianoDomenicoElioFrancescoGianlucaGianpaoloGiovanniGiulianoJacopoLucaNicoRaffaeleRenzo (though I really dislike
Lorenzo)
RoccoSandroSebastiano (I worked at an Italian restaurant and one of my coworkers was named
Sebastiano, nn Bastino. It made me love the name
Sebastian)
Vincenzo