The partition, without question.
The front portion gives great expansion the base continues on through the animal.

The bear claw front portion does not expand as dramatically as the front of the partition. It holds together more and makes a bigger mushroom. This creates a less dramatic wound channel and usually less penetration overall.

The partiton will lose 40% of its weight due to this greater expansion.
The bear claw will not normally lose more than 5-10% of its weight.