Wood is actually a spinner (just updated his rego), meaning we have 5 fast/medium options and 3 spin options. With this in mind I think the 7/4/4 option is perhaps best.
EDIT: Although the other teams arguably have stronger spin options, but then I'd imagine 4 spin isn't really THAT beneficial to spin-bowlers.
Also, Jager, if you were to bowl, what type of bowler are you? (I ask because I assume you'd have to have some sort of data for this)