I'm sure you're not the only one (even though I have been having major bugs). Of course it depends on when you got the game. If it was after the patches, well then that seems normal enough. If it was before, then either you don't play THAT much or you're just lucky.
I haven't experienced any major bugs myself, playing on the 360, around 90 hrs in, and beat the main quest. The only problem I have is the textures are messed up. And actually today I killed a dragon that I got from a bounty and I didnt get a soul, it just laid there, it didnt even turn to bones, looked pretty neat seeing a dead dragon laying there with its flesh still on it, lol. So far all my quests I did were fine.
Not absorbing souls from respawned dragons is not a bug, just so you know.