I use JandC Polywarmtone and it is truly a beautiful paper. Very nice tonal presence and the guts to print a black. It tones nicely. As a neutral paper I find that Seagull VCFB is a wonderful paper as well. It tones very nicely.

Additionally not knowing what film/developer combination that you use, I have found in my experience that JandC Classic 200 in combination with Pyrocat developer does a wonderful job of highlight tonal separation.