In reply to markharratt:
I got a (now no longer made) Berghaus hooded fleece in a gridded fleece fabric. Very warm for the weight. I would thoroughly recommend that gridded fabric, thoroughly recommend a hooded fleece, and thoroughly recommend getting something that fits snug.
We are all different shapes, so I suggest you go down to the shops and try out a variety and see what works best.
btw, my second favourite winter "fleece" is in fact a M&S acrylic knitted sweater. Warm, close fitting, wicking, fast-drying.