RE: new gun
Both will do just fine for you. It really does come down to personal taste.
The 24" barrel on the BPS may or may not be easier to get a good pattern with. In all the testing that I have done the "overbored" barrels tend to be easier to pattern than "standard" sized barrels so you should not have a problem with either barrel getting a good pattern.
Personally, I would go with the BPS but again that is just personal preference.