I don't think Robin was one of the worst (I think Rachel Dawes is worse, if not just as bad) but he was full of **** at times. I feel like Nolan tried to parallel how Tim Drake found out about Batman and Grayson as Robin, but the problem is the lack of actual logic in Nolan's attempt. It made a good degree of sense in the comics (Robin's acrobatics being the same ones Grayson and his family did, Robin coming into the picture around the same time Grayson was adopted by Bruce, etc.) but Blake...the look in Baleman's face? Even though you can't see most of it? That's a load of trash, get out Nolan. The Robin parallel was also...shoe horned in, legal name? I'm surprised Bale even let that go, he's stated that he hates the character of Robin actually and would have left the trilogy.
Also, Gordon finding out who Batman is at the end of Rises actually made some sense, unlike Blake. The nod to the comfort Gordon gave to young Bruce and the coat. It's not perfect, but I believe it unlike Blake