here are a few that personally apply to my saturday group.
here is one played by a fat guy named Aaron with no respect for women. it makes up 87% of his characters
Polgara, the somehow pretty but completely vain elven stripper vanity is a valid reason to dump charisma, but this stereotype refers to female elven or dwarven gish characters who dump charisma, build themselves with literally no synergy, try to sleep with everything they can due to their bisexuality, are a walking insult to women everywhere, do stupid stuff for attention, are always bearing some Orc's Bastard Child, and think that because they fluffed their bad charisma as being pretty but vain, that they should have fat bonuses to seduction rolls, despite dumping charisma. seduction involves more than just looks, it involves presentation too. expect such combinations as duskblade with blood magus levels for Stanch and diehard, despite having better overall combat ability by going straight duskblade.
and here is one involving Weekly William
the guilty reformed sadist you know the old school DM who used to be a complete sadist famous for inflicting a dozen TPKs per session? he didn't get a lot of players anymore, so you know what he did? he turned a complete 180. he is trying everything he can to keep characters alive, has become a complete yes man to his players with the exception of a few specific rules, is completely afraid of losing his players, spoonfeeds every bit of relevant info in a handwaved manner, and completely going against his former sadistic manner. he uses fewer encounters per day, increases treasure amounts drastically, and completely removes every sign of risk. instead of being the difficult sadist he was, he became this advocate for supporting players and is influenced by modern easier gaming styles which completely rub the tactical intellect and survival instinct away from their players because they are no longer needed.