Pointing out just one or the other is pure hypocrisy, both sides do it, and do it alot. Further, it is also done in reverse, using appropriate positive terms to represent what we on each side stand for.
It can be honest or dishonest depending on the claim, and sometimes even contradictory claims can be true. Look at what this thread is about. To me, the Tea Party is an extreme, fringe group. To the Tea Party, they are representing the common American? Which is true? Some of both.