Well JC would be sort of interesting to talk to with the benefit of hindsight I suppose but I'd go for Beethoven.
Very sexy man .... that wild hair, that stormy expression, romantic fashion sensability and a brilliant mind.
Would also like to sink a pint or two with Dylan Thomas. Also very charismatic and a v good poet if a hopeless drunk. I have something about Welshmen.
Also, would have liked to run into Sylvia Plath at a campus party, though I don't think she'd have been very nice.