Haven't kept count... I think around 30-40 of them.
The hardest I've done: Hardknott, Wrynose, Bwlch Y Groes, Garsdale Head, Winnats pass, Bushcombe Lane (Book 2)
The most beautiful: Bealach-Na-Ba, Llanberis pass, The Burway, Honister pass, Gospel Pass (book 2).
My local: Dovers Hill, Edge hill (book 2).