Hell, it isn't even all that satisfying when you get to kill him at the end. It would have been much better if they'd replaced him with someone halfway competent, that way his betrayal would actually mean something more than "good, now I don't have to deal with this idiot anymore".
ok, ive played and completed hl 1 and 2 and though i cannot remember her name im gonna say the scientists daughter, "go crawl through hell and shit and slime whilst i satnd here gordon, gordon, gordon.
im surprised its not on the poll, ill be surprised if i dont get flamed for bad mouthing anything hl related and also for not googling her name.
Sidekicks don't really bother me so much as do people in escort/babysiting missions. But Navi could get annoying after a while. And I usually just left the adoring fan in dangerous places and would come back later to see if he was alive.