In reply to Unclimbable:
In my opinion this depends on the weather.
The problem with Windgather is that it tends to gather lots of wind. It also tends to attract group usage and if the weather is good then it often gets packed. My advice would be to go there if the weather's good but get there early enough to avoid the crowds. This isn't likely to be a problem at this time of year, but you never know.
Harborough Rocks is okay but it's a little loose in places and the backdrop of a large noisy factory behind is a bit grim.
The Roaches has the same problem with groups but offers a better choice than Windgather (in my opinion), due to the spread out nature of the crag and much more pleasant scenery. I'd go to the Roaches, plenty of choice for top roping. Prow Area, Heather Slab, Rooster Area are all popular but often get clogged with groups.
If you could venture further afield then Yarncliffe would have my vote on a dry day as it's quite sandy.