I would set up:
2xGB Nic for management & Backup Network
2xGB Nic for Live Migration Network (or use one 10GB nic here)
2xGB for ISCSI (If you use ISCSI and ex. HP Lefthand DSM for MPIO, remember you CANNOT team ISCSI interface, DSM for MPIO will resolve path for you)
2xGB Nic dedicated Hyper-V interface (VLANS or Dedicated Nic's for VM's)
Separate Management/ISCSI and Livemigration traffic on different switches. If you run all on the same switch it's a total disaster if the switch fail.
(on iscsi network you could also have two separate switches for redundance)
Set priority to Live migration Network First, disable livemigration traffic on iscsi network(keep this network clean from other traffic)