depends on your needs!
do you fly or base? my bases told me that they personally prefer basing my evolutions over their old flyer's vengeances; the grips are much better and it's not as slippery. however, if you're basing, i'd say you have free range to pick and choose as long as your team doesn't have a set shoe (ours is evolutions this year anyway). if you tumble a lot, the vengeances might be nicer as they're very light. due to their thin material vengeances do rip a lot faster than evolutions. keep that in mind. evolutions are only a few ounces lighter- about 6 ounces i think. so basically it's up to you depending on the role you play!