As already stated, this is not how you play the game. The idea is that someone else gives you through characters and then you have to assign them to !@#$, marry or kill. If you just pick the characters yourself, where's the challenge?
So: Morrigan, Velanna, Vivienne.
Oghren, Sigrun, Varric.
Leliana, Josephine, Cullen.
Now you try.
Hahaha... How about I do both?
F: Morrigan M: Vivienne K: Velanna
F: Varric M: Sigrun K: Oghren (sorry man XD)
... oh man this one's hard... ...F: Leliana M: Josephine ...sorry Cullen, K: Cullen
But seriously...the no-rules OP version can be made fun too.
Inquisition Version: Men's Autumn Edition
F: Dorian
M: Solas
K: Roderick
Inquisition Version: Women's Summer Edition
F: Empress Celene
M: Josephine
K: My Hawke or Your Trainer 
DAII: Men's Sexy-Glow Edition
F: Justice (through Anders) or Feynriel
M: Fenris
K: Anders (sorry Justice)
DAII: Suspicious Bodily Fluids Edition
F: Sexy-Elf-At-the-Rose (yes, I know he's a man, mix-and-matching now)
M: Merril
K: Isabella
DAO: Blonde Bomb Edition
F: Zevran
M: King Cailan
K: Velanna
DAO: Raven Rebel Edition
F: Morrigan
M: Sigrun
K: Loghain
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What do you think of
Sera, Vivienne and Florianne ?