Hugh's is without a doubt the very best, though I recommend Yo-Yo Ma's, Daniel Müller-Schott's (both with Previn) too and the Piatigorsky that you have for historical reasons. He gives this work its very strongest advocacy in my opinion and it is one of the best Naxos CDs I have heard. (He is similarly spectacular in the Bliss concerto, Finzi concerto, Holst Invocation and Britten's Cello Symphony). Not saying that he will definitely convince you if you don't like the work, but his is in my mind the finest version of the 12 that I have heard. But then I love this piece so much!