I'd rather go with Shield-Drones on Commander. Since he is a Character with less than 10 wounds your opponent HAS to shoot at the Shield-Drones. Means he has to get past the 4++ and the 5+ FnP instead of just the 5+ FnP.
In my last match two of my Shield Drones soaked up almost a whole turn worth of shooting from a small Deathwatch army after I dropped my Commander right infront of his guys turn 1 to claim an objective. The look on my opponents face was priceless.