Which should I write first?

Okay, so I have two ideas for a novel, all set in the same contemperary fantasy setting, but I can't decide which I want to write first. So, anyone want to help me out on this and say which one they would be more interested in reading?

Idea #1:
Joseph Conallson is the quiet, innocuous secretary for an up-and-coming lawyer. He's a coffee addict, a collecter of old clocks, has a powerful phobia of owls, and a painfully incompetent Welsh-born magician descended from an ancient magical bloodline. The news of his father's untimely death brings relatives to his doorstep, begging him to take over the family business. With much reluctance Joseph agrees. His world is turned upside down as he is catapulted into the life of the Archivist, the one being in charge of looking after and protecting every magical item in existence. But as each day in his hectic new life passes, his father's death begins to look more and more like murder, and artifacts being to disappear from the Archives. In a desperate attempt to clear his own name and find his father's killer, Joseph begins researching his family's tangled history, he finds things deeper and darker than he ever would have expected.

Idea #2:
Schizophrenia and magic do not mix. This is something Damen Snow has been taught since he was diagnosed, and it is the reason his parents kept him away from the normal people, the mortals that his siblings were free to interact with. But now he's free, and his parents are dead. Witch hunters have reorganized, and his family was first on the list. His parents are murdered, and his sister Charlotte is kidnapped in the aftermath, leaving Damen and his three brothers alone in the world. In a desperate ploy to get their sister back, they leave the secluded countryside they've always known for a game of cat-and-mouse with Charlotte's kidnapper. But as conflict begins to break out between the brothers, Damen is forced to watch as his familly falls apart and his sister move farther and farther away. Hunters are still on the move, and the tattered remains of the Snow family will have to band together to stay alive.

#2 definitely interested me more. Of course I am very into psychological matters, so while reading that synopsis, I was wondering how his schizophrenia would play into the rest of the plot. Also, I like a good cat-and-mouse story...but especially when it is very character-driven.

#2 sounds cool, you should write that.

#2, definitely. The first sentence was amazing.