I tend to have a lot more power behind the matched grip, which works for the big rooms we're playing now. I also find matched grip a lot more consistent, which has been a big factor for making records and doing sessions as well. The consistency of how you hit that drum is everything.
I'll go to traditional grip when I want to stay off of back beats and the rim shot thing. I use that when I want to just find that center of the drum and let the instrument speak that way.