It seems like everyone agrees that 1 to boneyard/claw (bottom) and 1 to windmill. I don't think it will be necessary to capture top (refinery/pits) since your minions from bottom (and possibly windmill) will capture it for you. However, it will still need to be guarded.
Where the other 3 go is up to debate and will probably be what defines each strategy. Some say supplement the capturing of bottom and windmill, a lot say capture top, some say take control of the middle, and some say rush an enemy cp. We will see what happens with different team set ups, match ups, strategy match up, etc.