I'm the sort that it does depend on my mood, but I do have some staples:
The raging holy man. In DnD terms, a Cleric that acts like a Barbarian.
The classical duelist. This one's Japanese-style, so your classic
Blue Oni Iaijutsu master(TVTropes warning!).
The Heavy. In medieval games, it's Mister Clanky with a great sword. In modern games, it's Mister Clanky with a minigun or equivalent.
The Sniper. Oh, I have fun with this one. Give me an anti-materiel rifle and a tall building and I'm happy.
The Face. I play with this one a lot. Some of my faces are magical. Some are backstabbers. Others are just faces.
Demons. Not as a race, more as a theme. Demon-summoner, Demon-possessed, Demon-aspect, Demon-slayer, what have you. I did once play a Faustian-type devil, though.
I have others too, but those are the main ones.