Who is more brain dead, Oliver or Captain Lance?

I just finished season 3 of Arrow and I am having a hard time understanding how two of the main, and supposedly intelligent, characters are complete morons. First, Lance goes nuts with this entire hunting the Arrow thing. He is completely irrational to the point of being a caricature of himself. Some of the things he does and says are so completely out of left field that it seems like a different character.

As bad as he is, Oliver is even worse this season. First, his explanation for saving Malcolm is brain dead. He desperately wants to save Thea's 'soul' to the point of making everything much much worse. I mean, everything with the League was over. Oliver goes out of his way to ensure he pisses off Ras so much that he is right back in it. In fact, none of Oliver's decisions make sense this season at all. He pretty much causes all of his own problems.