I was having this discussion with a friend of mine in over a few pints the other day and I thought I'd open it up for further input. They’re both very similar in a number of ways but there is, we both felt, a distinct difference between the two characters. It’s just that we both had trouble succinctly putting our fingers on exactly why...
It did feel like a good exercise in analysing what makes a character funny and I'd be interested to hear what some fellow biscuiteers have to say on the subject.