Weird that I got on here to investigate this same question. I'm personally leaning towards the Steeda. It almost boils down to personal opinion I believe. I hear the Pro is notchy, and some like that, I hear the Steeda is pretty free flowing.
There really isnt a difference between the shifters, you'll still be getting a shorter throw and a better feel than the factory shifter but I believe that the mgw has a shorter throw and personally I liked the feel of the mgw better. Its all personal preference though.
I am not totally sure on the height between the shifters but I love the look of my mgw and isnt as tall as the factory. I would say the triax and mgw are near the same height.