1) Warrior-Likely to join the Companions and destroy the Dark Brotherhood.
But only if that's a white knight type of warrior. You could also create a psychopatic murderer, or a free-spirited swashbuckler, or a mercenary. And they all have their own reasons for joining (or not) the Companions etc.
As I see it, roleplaying isn't as much about
who your characters are as
why they are this way. If you start out as a warrior, you don't
have to stick to it throughout the game - but if you start learning magic, your reason shouldn't be 'Because I read on the forum there's this cool sword in a quest-locked dungeon', but rather 'People he met during his adventures taught my Nord to overcome his initial prejudice against the arcane arts and he decided to study them in order to gain better understanding'.