Compared with Gill Sans, Trade gothic is more narrow and tall. Its shoulders and curves are more squarish and abrupt. Trade Gothic reminds me of toothpaste--I can see the obviously smooth part of each character. Because Trade Gothic has height, it’s a natural choice for basketball players.
The reason why I picked Gill Sans is that it is organic and not too heavy. I also want to represent feelings of weightlessness and speed. Gill Sans has round strokes in the structure of the lines, and it has a sharp cut at the end of each stroke. Overall, I think this typeface is a good choice to play with the transformation and twisting.