NA tries to do the best that they can at both modes, and sometimes this means that there are aspects of the figure that don't turn out so well. For NA Soundwave I think his weak spot is scrawny limbs. He's just not imposing, and instead fits that overall NA aesthetic where all the toys kind of look like kid versions of the characters. On the other hand, MS almost always leans hard AF into getting a good bot design, but this can lead to compromises on the alt mode. MS Soundwave really captures the look of one of my favorite characters, and gives him the perfect amount of bulk. Unfortunately his alt mode isn't as solid as NA's in that the back of it isn't as clean, but otherwise it's really well done. The biggest disparity between the two is how to get all of the tapes. NA packed them all in with the different repaints of their Soundwave, while MS split them up to the point that you have to buy two versions of Soundwave and a separate pack of tapes to get all of the main ones. So, it's hard to definitively say which is better.