Check out a few of the London Symphonies conducted by Szell; I found them worthwhile. For the Paris, Karajan's reading is interesting, to say the least, for it is quite Beethovenish as explained. Never known for works on Haydn (didn't do many either if not almost none until his later year); however, the usual refinement of Karajan shows and is quite enjoyable. A friend of mine has Eugen Jochum on LP. When I sampled them, I quite liked them. If you find them on LP, try them and you won't be disappointed. I know for sure that DG has reissued his reading of the London symphonies on CD; yet, I have not found them for myself. It may be worthwhile to check out Hogwood, the backbone of my set; I love his works on J.S. Bach, Mozart, Haydn. etc.