Having only attended Tosca, I am not in a position to say which.
However, I am reminded of the late Cajun cook Justin Wilson. He used to say that people would ask him "What kind of wine do you serve with _____ ?" to which he's reply "Whatever kind you got!"
Not having a lot of choice around here except for "whatever we got" my first was Tosca, and I was happy with it. I would have liked to see Rigoletto, if only to hear that song about Donna not being able to walk, or something like that.