As an outer shell ventile is supposedly the best, as a windproof outer in arctic conditions. [I've never tried mine in these conditions. But we should see a steady move toward these conditions in parts of the UK over the next 50 years.]
For UK use, if you're not travelling far, or moving slowly, standing around in a forest or on a moor, I prefer something like a Harkila pro hunter. The membrame works well to keep you dry, and the outer is extremely resiliant to tears etc, plus they feel very 'snug'
For travelling all day, across moorland, or mountains, a lightweight event/goretex shell.
For bushwacking through forest for days on end, a tougher goretex xcr type shell.
My mid layers are microfleece, softshell, heavy swanndri, or down jacket.
Base layers are merino wool [ulfrotte or M&S superfine] and polypro long johns and tops.