Let's take a look at the famous male opera singers of today and the past.
They are separated according to their vocal classification:
Bass
Norman Allin 1884 - 1973
Some of his work:
Opera : Handel - O Ruddier Than The Cherry.
Role : Acis and Galtea.
Opera : Mozart - See The Way You Rogues.
Role: Il Seraglio
Opera : Meybeer - She Alone Charmeth My Sadness.
Role : La Reine De Saba.
Robert Radford 1874 - 1933
Some of his work:
Opera : Mozart - Don Giovanni.
Role : Commendatore.
Opera : Moxart - Il Seraglio.
Role : Osmin.
Tenor
Luciano Pavarotti 1935 - 2007
Some of his work:
Opera : Verdi - Rigoletto.
Role : Rodolfo and Duca di Mantova
Opera : Puccini - La Bohème.
Role : Rodolfo
Plácido Domingo 1941 -
Some of his work:
Opera : Verdi - La traviata.
Role : Alfredo.
Opera : Beethoven - Fideli.
Role : Florestan.
Countertenor
David Daniels 1966 -
Some of his work:
Opera : Handel - Giulio Cesare.
Role : Sesto.
Opera : Vivaldi - Bajazet.
Role : Tamerlano.