Springfield XDs 9mm. The holster varies, depending on where I'm going and if I'm allowed to carry on those premises (sadly, work won't let us carry on-prem).
Before you leave PA to enter NY, unload, place in a locked case, put it in your trunk or out of sight/reach, and the federal laws regarding right of travel through the state apply on your way through NY to NH.
Once in NH, your IN LTCH is honored and you're good to go.