Hi Roman,
First, I would split management and vMotion traffic into seperate VLANs. I've seen some vMotion process going wild, I like to keep that seperated ;-)
So you could use NIC1 for management, with NIC3 on standby for that and use NIC3 for vMotion with NIC1 on standby.
Second I would recommend to use NIC2 and NIC4 in active/active mode, so you actually use the second card for load balancing the VM network traffic and not wasting it in standby mode.
Cheers
Tim
