If you have the room, I like the PowerTank setup. I also run the ARB compressor also, off the brake booster with the bracket, but nothing beats the PowerTank setup, in my opinion. See attached pic and I've also got a setup off the rear roll bar mount.
Same here. I have the ARB under the hood and a power tank in the back. ARB is mainly for backup... as I use the PT all the time.