Guns & Ammo assessed the states with regard to their gun friendliness.
Of course I was proud to see my chosen state of Arizona at the top of the list, though I think the editors might have been a mite too optimistic as Governor Brewer vetoed a couple of pro gun bills. One would have allowed CCW holders to carry in more public buildings which are not protected by metal detectors. As the recent events at Jacques in de la baux and The Pit have demonstrated, no guns allowed signs only keep out the law abiding; providing the criminal element a safe working environment. Another would have fined municipalities that enacted codes more strict than state laws.
Here is a plot of the G&A scores versus the ranking. The blue line represents the raw G&A scores.
The orange line at the bottom is the delta from this state to the previous. IOW, how far did this state drop from the previous score. The first thirty seven states the delta is either 0 or -1. State 38 (Iowa) marks the first change to a steep drop (-3). The steepest drop doesn't occur until "state" 51 (Washington D.C.) with a -6 drop to a final score of 0 (zero).