You can never have enough quality 3B, even in a 10 team league. I would go with Wright over Holliday.
You have Arod, but he is no spring chicken anymore. And with a CI spot available, I'd rather keep Wright. And if you want to cut ties, there will certainly be a few teams who are in need of a good 3B.
David Wright for me. If the cards fall the right way Crawford might be there next time you pick. It's a long shot, but a lot of people are sour on him after 2011.