I've done Peat Lane. As you say the problem is the lower hair pins (one of which prevents you seeing vehicles coming down until they are on top of you) and the broken scree covered surface which on a wet day can be like a river: not too good on 25mm road tyres.
Simon Warren can't list everything and in the Pateley Area the others he lists are Harwith Bank (6) Summerbridge and Trapping Hill (7) - Lofthouse.
If a road surface is smooth then getting up it is just willpower, patience and muscle. But Peat Lane and Thwaites Brow in Keighley add another dimension outside your control. If your front wheel gets stuck between the broken cobbles on Thwaites Brow you are in serious trouble.