I think that "Lepanto" would be rather too long and heavy for most of my audiences - even though it is one of my favourite poems.
"White founts falling in the Courts of the sun,
And the Soldan of Byzantium is smiling as they run"

"The Yarn of the Nancy Bell" was my party piece as a child. Many years ago I set it to music and still sing it in folk clubs now and then.

I also perform "Sweeney Todd the Barber" (in the DT HERE) in which the whole centre of the piece is spoken. I find that the mixture of singing and recitation is even more fun than either on their own.