Agree with the above really.
Whinlatter 8/10 – Absolutely love it. 2 decent, mainly singletrack climbs followed by 2 fabulous descents. Only thing to be aware of is that it gets frozen. We went a few times last winter and bits were closed and on one occasion we rode when we really shouldn't have and it was treacherous. I'd ring Cyclewise to check it out.
Grizedale 4/10 – Did it once, it bored the tits off me so I drove over to Whinlatter – very possible to do them both in a day with an early start
Gisburn 7/10 – Did it a couple of weeks ago and loved it. No real climbing or descending, just 2.5 hours of cross country really.
Enjoy