I actually like World War I quite a lot. Well, besides the part once you get the the trench warfare of 1915 onwards. Other than that (the initial German offensive, and operation in the East), I find that World War I is a very interesting topic. I have a book set on the Revolutionary War, Civil War, WWI and WWII. 
Ahhh, have those sucked up quite a lot of my time.
Ahhh, have those sucked up quite a lot of my time.