What I mean is, once you've RP'd with certain people a few times you start to get a 'feel' for their style of characters even if they have a diverse range. Have you ever based a character of your own around the type of characters that your partners play? Or maybe have one or two inspired by them?
For example I have an RP partner who loves cyberpunk so anytime I make a robot/futuristic type character I feel it's somewhat based on or inspired by the characters that she has roleplayed. I can't be the only one, right?