For La Travita, Anna Moffo's 1960's recording with Roma
opera house is the ultimate Violetta even Richard Tucker's Alfredo was a bit drag. Robert Merill's Germont was good.
Giulini coducted 1967 recording with Covent Garden is my
second favorate for Piero Cappuccilli is the best Germont
ever in it. Freni's Violetta was also great.
Rigoletto? Who can beat great Ettore Bastianini? His recording with Alfredo Kraus and lovely Scotto and Cossotto with Maggio Musicale Fiorentino is the best.