In reply to RatKing:
Crib Goch is notably more difficult and exposed than Striding Edge. It's still very much a walkers' scramble, but it's a route that the ill-prepared can and do come a-cropper on.
I'm afraid you hit the nail on the head with the last line. You'll have to decide based on conditions at the time.
Wind, rain and low cloud all make Crib Goch (indeed, all scrambles) a lot more serious than they would be on a nice day. In high wind it's well worth avoiding.
Snow and ice are reasonably unlikely in Wales these days but not out of the question in November, and if it's proper winter on the ground then Crib Goch is mountaineering terrain. If so it may require an axe and crampons, and certainly sound judgement and a lot of care.
There are loads of less serious alternatives in Snowdonia that still give you a great day out on the hills. Check out our Welsh Route Cards: https://www.ukhillwalking.com/logbook/r/find.php