This also crosses over the Sherlock Holmes movies but I only had room for two categories. John Watson in Sherlock mentions that his middle name is Hamish so he'll be called that to avoid confusion but you can figure out which Sherlock is which by yourself. Major spoliers.

"I broke into a morgue and cut up a dead man because of my Sherlock, he stole a famous painting,"Joan said. "He won't sleep and he never does any house work."

"My Sherlock won't eat or sleep, he shoots at the wall, is the last person you ever want to play Cluedo with, he keeps body parts in the fridge, borrows my laptop without asking, everyone thinks we're a couple and he faked his own death," Hamish said.

"My Sherlock steals my clothes, is clingy, experiments on my dog, stinks up the house with his weird experiments, plays the violin at three a.m. in the morning, has no personal hygiene, offended my wife when we first met, tried to talk out of getting married and tried to trick me out of getting married using a fortune-teller, forgot to plan my bachelor party, put my wife and I in danger and then threw my wife out of a train, thanks to him I missed my honeymoon and had to travel with gypsies instead and he faked his own death," John said.

"My Sherlock also messed up my proposal to my wife when he came back after three years," Hamish added. "He let me think that we were going to get blown up. And he got his protegé to put sleeping drugs in my wife's drink. Oh and one time he drugged me and let me think that a killer hound was going to attack me just so he could solve a case. When he faked his death it was by making me watch him jump off a building and he broke the heart of one of my wife's friends."

"Ok Hamish you win your Sherlock is the worst," Joan said. "Do you have anything stronger than tea, by the way?"

"I have some vodka if Sherlock hasn't used it in one if his experiments," Hamish said as he got up. He came back with a bottle of vodka and three cups. He poured himself and the other Watsons some vodka and lifted his own glass. "Here's to our Sherlocks, may we one day figure out why we put up with them." They clinked glasses.

"Here, here" Joan and John said. They all drained their cups.

Meanwhile their Sherlock's deduced each other.

"Recovering drug addict with a fear of flying."

"You're a recovering smoker and I'm guessing you only stop smoking when there's a case."

"You're a boxer and have a dog."

"You have a turtle."

And it went on like that for several hours.

Janine was the maid of honour so I'm guessing she and Mary are probably friends. I've missed a lot of episodes of Elementary so if I left out anything Joan's Sherlock did please tell me and I'll add it in.