Depends on your needs.  The X-Factor and the Deuce are great balls, and each will give you a different reaction.  I don't know anything about the Firepower, but as for the X-Factor, as long as the plugs aren't or won't be in your track area, it could be a decent trade.  It's your choice, and it depends on your needs.
--------------------
-Dino

Hey Lanebed,

"THAT'S" how good "WE" are...everyone wants to come here for advice...

So with that being said, Brandon, it depends on what you need to fit into your arsenal.  The X-Factor is a good med oil ball and the Firepower handles a little heavier condition then that and tends to roll a little early.  The Deuce can handle probably the same amount of oil as the Firepower but is a little longer and stronger on the backend.  Hope this helps..

What can I say, I'll help anyone who asks...
--------------------
Rick Leong
Ten Pins Pro Shop
Track Intl. - Amateur/Pro Shop Staff  
Vise Inserts Staff