crossover or x-pipe

I've always been told H pipe for torque and X pipe for hp.
I believe that H pipes help with bottom end torque quite a bit.
Every dual exhaust system I've ever had built car or truck gets an H pipe as close to the engine as possible.
Not to mention I love the way exhaust sounds with an H pipe, a little more mellowed out but at the same time it's a distinctive sound that you don't hear everyday like the sbc's