I'm partial to boars so that's what I'd recommend, and I dislike rubbing plastics on my face. Honestly from my experience, just get a knot that suits your needs, don't go too small or too big. For bowl lathering, get a bigger handle and a mid sized loft at least. And be patient with boars, it's well worth it, once they're broken in they create lather in literal seconds.
I'd say it's not really relevant if you get an Omega, Zenith or a Semogue, they all perform pretty much the same and boar hair is boar hair.
