I have recently tried Forte Polywarmtone with Agfa Neutol WA for the first time. My other paper developer has been Ilford Multigrade. Neutol WA in general, even in Ilford MGD RC papers gives a slight tint that exaggerates the greenish cast of the papers also it creates a seperation between highs and midrange tones which seem a bit abrupt. It is a nice effect if you are going for it.
With Forte Polywarmtone, Neutol WA gives a very warm image, with more tone than Ilford Multigrade Warmtone FB. I could not differentiate between them in terms of tonallity or quallity but they have very different tone, the Ilford looking almost neutral compared to the Forte. The tone is almost like a faint sepia, that much colored it gets!