I always play as Dwarves if available, and always as a defensive warrior/tank class.
Examples;
In Dragon age, it's a sword n' board Dwarf warrior.
In Wow, it's a Prot-specced Dwarf paladin.
I never, literally NEVER play any other combo.
Mostly because I enjoy tanking - it's fun watching an enemy use their most deadly attacks on you and you barely take any damage. Sure, we're not great at causing damage ourselves - but we don't really need to.
I just don't find any other playstyle attractive or appealing.
As a tank, you can work out a solid order of defensive and threat generating spells that are multi-purpose and work in any situation.
And you're durable enough to take punishment if you make a mistake. It's a forgiving class.
Mages, rogues, archers... I just don't like the style.
I love the appeal of heavy armour. It looks cooler.
Anything other than a dwarf tank and I'm not interested.
Mostly because the Dwarves are usually stoic, honourable and laid back. And drunkards.
Humans are almost always massive pricks, and elves are all mystical and deep, but somehow aloof and arrogant in a flawed way. (There will of course be exceptions, this is only a generalisation...)
So yeah. Warriors are cool, Dwarves are cool. Anything else is outside my COC. (Cone of Caring)