While I LOVE my Warrior, I was thinking of creating an Assasin character. I know that there really is no absurdly wrong way to approach this game, but when playing as an assasin, I'm not sure how dragon slaying fits into the skill set of this type of character, unless they use magic or archery to complement their preferred one hand dagger usage.
How has your experience been as an Assassin?
I loved playing as warrior too, in the beginning. Now I created an assassin and it's even more exciting! There's more strategy to it than just bashing someone in the face.
As for dragons, currently I haven't even touched the main quest yet (head straight to Riften after getting some supplies from Riverwood -- currently level 18). But when I would have to face dragons, it'd probably be mostly bows and arrows with enchantments and some use of poison (focusing on alchemy to brew strong poisons is also profitable). If you use magic and you're playing a pure assassin, your magic wouldn't be enough to kill the dragon fast enough, unless you wanna go hybrid.
Basically, this class takes a little time and patience to progress because in the beginning, you can be quite weak. But later it gets much easier with high sneak skills.