My first playthrough is going to be a self insert, because I don't want to mess up my Dalish mage,that will probably be my canon
I'll probably choose the closest thing to a bookish historian/librarian.
My second will be Laurelin my Dalish mage she's quiet and mysterious.Surprisingly open minded and has a wild streak.Most people in her clan believe she's cursed.
My third will be Aidan,a spoiled passionate nobleman,who is secretly a hopeless romantic and loves to paint.
Fourth is Jarnsaxa,female qunari rogue with a will of iron and incredible leadership skills.Loves power,but is reasonable and just.
Fifth is Harald,my dwarf warrior and he is based on Thorin Oakenshield,nuff said.
Laurelin 
First for me is Auren Lavellan, archer, all around serious guy, shem-hater, mage-distruster, Dalish-supporter.
Second is Kael Lavellan, mage, happy-go-lucky warrior-scholar, curious about the world, friendly towards everyone, but don't underestimate his ass-kicking abilities.
Third is Adela Trevalyan (please forgive me Adela; I love the name!!), S&S warrior, fierce Valkyrie, no-nonsense "Let's get this done" kind of gal, and lover of blond city elves.
Fourth is Aliss Cadash, DW rogue, lovably snarkish, rabble-rouser, "I'll get to this inquisition stuff when I'm damned well good and ready!"