Command Shells - The Quirks, The Pros and The Cons

OctaneZ asks "I am not trying to start a flame war here, but I would personally be very interested in seeing an analysis, both pros and cons, of all of the common shells: bourne, bash, csh, tcsh, and korn. I understand that a lot of linux users swear by bash because it is the default, but they all have there own "personalities" what does everyone think?" Interesting question. I'd be interested in hearing why some folks prefer csh over bash.