I had a two-year love affair with Neopan 400 after buying some "Presto" in Japan -- it weaned me off Delta. In the end I decided that what I really liked was Tri-X, and Neopan was just a transitional stage back to the film of my childhood
I like Neopan in X-tol and Rodinal.
Acros doesn't like Rodinal so much, but it's excellent in X-tol, crisp and somehow metallic-looking (steep part of the curve I guess). It's my favored low-speed B&W film, though I wish I could get it in bulk.