The definition of Ahlul Bayt depends on whether your view is more important or the Prophets (saw)'s. If you think your opinion is more valid, then your're obviously going to interpret it as whoever you feel like, if however you rely on the Prophet (saw) opinon, then you'll most likely get a different picture. So it all depends to be honest...on how big your ego is.
And that is where the real test comes in..