Yup I play all three. Get a couple classes together, stand with your back to the wall at a straight away and have a little race. You will notice little if any difference in Sprint speed. The only major variable in movement speed is the jump ability and the titan's jump has the most potential to cover distance quickly. They did try to improve hunter movement speed with the keen scout perk but I honestly don't notice a difference.

Have you ever heard of Titan Skating