I like the idea of Gunnar as full time SS and Holliday as full time 2B. To start the season, I'd like to see Gunnar at SS and Westburg at 2B for 90% of the games.
EDIT: I'd really LOVE to see a Gunnar at 3B, Ortiz at SS, and Westburg at 2B to start the year, but I think one of Ortiz/Westburg will be traded.