My first world state is my canon run. Female noble rogue became Queen, goody two shoes minus the crime spree with slim and all of those assassinations for the Crows.

Convinced Alistair to knock up Morrigan (>_<) got along with everyone.
For each additional class, I make a different world state and different romance.
Male human Mage romanced Morrigan.
Female human or elf (done both) Mage romanced Zevran.
Male dalish rogue romanced Leliana.
Female human (or elf) Mage romanced Alistair didn't harden him and kept him with the gray wardens
Basically all the same choices with these, just different tweaks. I always keep Alistair alive, kill Loghain in a duel but let Alistair chop off his head, kill the architect, save amaranthine, save Nathaniel Howe and get Oghren to stay in his kids life.
On my "evil" playthroughs, I roll a male human Mage who romances Morrigan and a female human Mage who romanced Zevran but I have yet to create these last 2 world states. It's painful to relive those memories, lol.
As far as DA2 goes, I'm a good girl when Carver is alive and he never ever joins the Templars and i friendmance Fenris or Sebastian (way more PTs of Fenris romance though just for dialogue, Seb is my canon romance) and if Bethany is around, I'm aggressive Hawke who rivalmances anders. In either world, I always help Tallis and always choose Larius.
Anddd that's it. Sorry, I'm not very interesting, I'm afraid.