Firstly I must express my lack of knowledge in these parts, as I haven't played many of the cathedral organs around the country, or anywhere for that matter! But I must express my preference for drawknobs over stop tabs or the like. Firstly they are much more asthetically pleasing, and secondly, I find them easier to use. I don't know why this is, perhaps its the feeling you get when yanking out that 32' bombarde for the last chord! Ooh, spine tingling!
Anyway, seeing as I haven't played a huge amount, I can't really say which are the best to play. However, having seen a good many, the one that I think is just breathtaking in looks is the console for the Father Willis organ in the long Library at Blenheim Palace. I think it is just amazing!
Kind Regards,
Richard