I loved that series as well, and it was the first one I went out of my way to collect the book from once I started working, since I first read them while still at highschool. They will always have a place on my bookcase.
I didn't mind the Empire books, but didn't like the other side stories as much, Jimmy the Hand being the exception.
I haven't read them as much as you yet Warlord, only read the early ones about 6 times, and some of the later books 2-3 times.
I don't think there has been a book that I've read as many times, or enjoyed as much when I've re-read it as much, although a few have come close.