Anyways, I noticed something interesting regarding the Bosses of Nightwatch and Daywatch.
Unlike the lower ranking people, who actually gave up on their wishes in order to advance their cause, Boris and Zebulon were playing their watches for their own benifit (Boris' goal in the whole book was to remove the punishment on Olga). I found it odd for Boris, but then again, I suppose "good" can be for everyone or just for one person, it still counts as good.
Also, I think the book reallt focused on the need for balance. With too much of a focus on Light, you end up with Fascism (We were told Nightwatch helped out Nazi Germany) killing millions for the greater good, while with too much of a focus on 'Evil' you end up working only for yourself.
In the end, Anton decides he just wants to be a simple White Mage, to become just slightly less human then actual humans, and give up on the power being a Watcher gives, because neither side was right. That's why the treaty was so important. In reality, both sides were bad by themselves, but together, they were 'good' for humans.
Though, I question why the Darkness accepted the treaty. They could have won easily if there was no treaty.