Actually, first let me apologize for lateness but DW ate the first attempt...
I'm super excited about this exchange, because I love crossovers and AUs. Love them, love them, love them! I like thoughtful reasonable ones where everything really fits together, just as much as I love cracky McGuffin-esque ones. Whatever you do, it's going to be great!
DNW: excessive violence/sexual violence, cruelty to animals or children
First, let me tell you (a little) of what I love about each fandom:
Dallas 1978: 1980s extravagance and excess. JR Ewing scheming, wheeling and dealing. The way Sue Ellen's alcoholism is real, both the ups and downs. The fashions! If you are familiar with the reboot, feel free to hint at it. I also love the "we'll fight all we want but you take us all on" dynamic. Would prefer focus on later seasons, unless you want to have some fun with Bobby Ewing's shower.
Hart to Hart: These two have such chemistry, and I love it. I like the more serious undercover stuff (like related to Hart Industries) and how they just keep having murders happen around them. The 80s fashions are also fun! The first season episode set in Vail is one of the best.
Murder She Wrote: My mother watched this show so much, my brothers and I refer to Angela Lansbury as Grandma. I love Jessica and how she just stumbles into murders (or is a murder magnet). I like Cabot Cove stories but some of the travel ones (like Snow White, Blood Red) are also excellent. Seasons 2-5 are good.
Cherry Ames: I like the WW2 stories just as much as the Cherry Ames, Random Nursing Job titles. I like her determination, her late streak, and just her in general. My favorites are Army Nurse, Chief Nurse, and Boarding School Nurse.
Nancy Drew: I love Nancy in all her incarnations - originals, yellow spines, Nancy Drew files. I like when she's determined and maybe a little reckless in pursuit of mysteries. No Nancy/Ned, please - I don't ship it. I love The Mystery of Lilac Inn and the Bungalow Mystery.
Perry Mason: Perry/Della. Perry relying on Della's feminine intuition. Clients who just can't tell the truth even when it would help, and who just can't resist hiding that one thing. Perry making people think he's done in. Paul doing the last minute legwork. I have the whole show, but definitely want the show, not the movies.
G.I. Joe: One of my favorites as a kid. I love the women of the team. I love the 80s feel. Some of my favorites are The Funhouse, COBRA Stops the World, and the whole Arise Serpentor Arise mini-series.
Captain America movies: I really love the first one, but I also love watching Steve adapt to his new reality. And the whole scene in Winter Soldier where Zola is all "accidents happen"... Also, there's totally UST between Cap and Black Widow.
Clue: I love this movie, especially Miss Scarlet - how she is brash, frank, sexy and unapologetic. Feel free to combine Clue with anything on this list. I really like the whole "strangers trapped together" deal.
Jem: One of my favorites. I love Jerrica and her need for an alter ego, the dynamics between all the characters, and yes even the music and cartoon 80s fashions. I like the earlier episodes before things get cracky, but I also enjoy the Stingers eps.
He-Man and Masters of the Universe: My favorite cartoon. There was something about this one I always liked better than She-Ra, and it's Adam and Cringer's relationship - plus I love Queen Marlena. I love the Rainbow Warrior ep, Into the Abyss and the Sword in the Stone.
Hunger Games (movies): I enjoyed the first 2 movies as much as the 2 books - a little shaky on the Mockingjay stuff. I enjoy how the movie gives us a better feel for the whole world.
Greek and Roman Mythology: I love the soap opera aspect. Big fan of the Trojan War related stories, especially Odysseus and Penelope.
On to the requests!( Requests! )