I'm currently using winsor and newton series 7, and I'm convinced I wont find a better brush. They're perfect. A bit pricey, but definitely worth it.
That said, I've just had an end split and I've had to order a new one. Whilst I'm there, I'm wondering about other brushes. I need some others to paint basecoats and washes etc.
Up until now, I've been using some GW ones (Mediocre) and italeri (terrible) for this. What brush brands do you use, and how good are they? I've been recommended to try out army painter, so I bought one, waiting for it to arrive.