I think overall (was it the first one to have Lu tse in it?) But I just love the way Bruvver the true believer copes with Om's lack of faith and with the truly vile and politically warped Inquisitor whose name escapes me just now.
Fave Witch/Wizard book would have to be Lords and Ladies
for all kinds of reasons but mostly 'cos of Ridcully rediscovering his youthful admiration of Granny
Fave Watch book - erm maybe Feet of Clay
- bit like the X Files in a way and its the first time I'd ever heard about Golems too - although perhaps on balance Guards Guards
as it's just wonderful with Vimes and Sybil starting to get it together and Carrot all cute and naive
I also love to re-read Moving Pictures
as that's Gaspode's first outing and I love, love, love the ickle guy to bits