Directional is a limitation found on B47 for Damage Resistance.
Front is worth the least discount: the same as a "Very Common" type of damage
- this would probably be a -15% Bane
The others are worth the same as a "Common" type of damage.
- this would probably be a -10% Bane
The "Bane" approach is generally better than using Either/Or Limitations to cover multiple angles because the way limitations are multiplied is crippling: Front and another is 0.4 x 0.2 = 0.08 for only a -8% limitation which is inferior to the discount "everything but Bane" offers.
- This applies to Limited Defenses too: it's just cheaper to buy DR once as a Bane