.380 penetration v.s expansion

The debate rages on. Here is a rather extensive debate about the topic by a bunch of mousegun "fanatics".

Their poll results thus far:

Penetration is more important  

  35 (35%)

Expansion is more important  

  13 (13%)

They are equal  

  41 (41%)

Don't care as long as it shoots  

  10 (10%)

Don't know  

  1 (1%)

Total votes: 100