Alot of people who main one class don't like the other classes jumps because they done know how to fully utilize them. I see the use in all of them.
DOUBLE JUMP is a quick jump that can be used quickly and can be modified to be one of the highest jumps.
TRIPLE JUMP is better than double jump because you can jump 3 different ways before landing.
BLINK is a fast instant jumy from one place to another. It can be used to foil enemys much like triple jumping.
GLIDE is a jump that is similar to flying. This can be used to quickly survey all of the surrounding area and there's even a perk that allows you to shoot while being sustained in the air.
LIFT is much like glide but it ore of a jet pack boost and is much faster because of it.
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I have all 3, I used a Hunter for a long time and thought his triple jump was the best and liked it a lot, now that my Warlock has gotten to 30 because of lucky drops and I've been using him more I think the Warlock is the best and Titan a close second