I myself have always thought my father would roll as a blood elf frost mage. The mage because he was a bit of a trickster and I imagine he'd get a kick out of spells like Blink and Polymorph. An elf because he always enjoyed the wise and collected demeanor of the elves in Lord of the Rings. And frost because he'd prefer PvP over PvE, and frost offers so much control and utility for that.
As for my step father ... I've never so much as seen him touch a video game beyond Solitaire, so maybe he'd just play Hearthstone. Who knows?
What about your fathers?