Then I would suggest John Ford's The Final Reflection (TOS). Just really great writing and a totally compelling pre-quel story.I haven't really been able to get into any star trek books. I tried reading "Federation" but I became bored quickly. I have never liked reading novels based off of tv and movies because the characters never feel right. I would read a Star Trek novel if it had its own totally new characters but I really don't like any of them with the tv characters.
My other favourites are Entropy Effect, Dwellers in the Crucible, Ishmael (just because), and Strangers from the Sky, all TOS.