Battle Droids - Oh come on Hasbro, if you offer two Battle Droids in regular cards now, then this set should have a few more Battle Droids in the mix.
Well the idea of the pack is obviously for both sets have one of each playable soldier type. It wouldn't make sense to have extra droids in one pack and not extra clones in the other. Thats probably why they have the extra ammo droid in the Seperatist pack. To sweeten the pot a little I guess.