My favourite crew member(s) have got to be Tom Paris and the Doctor. I liked the developement of Paris' character as he turned from a Starfleet Misfit to a responsible crewman/pilot. He was always the funny one and had an entertaining story, also a great Holo programer, he invited great programs to the holodeck with his knowledge of 20th Century Earth. I think that the Doctor is also great because of his developement throughout the Voyager story. I loved the episode 'Tinker, Tonker, Doctor, Spy' in which the Doctor daydreams. I thought that he was brilliant at bringing new storylines to Star Trek by bringing Holograms to be a proper piece of the francise.