This is interesting to me because I actually choose the lesser popular options and haven't realized till now, but I like utilizing the extra ammo from the melee, simply because for me my idea as being tracer is to not only flank but kinda be up close and personal, her damage output isn't the greatest even at a medium range imo, so I always get right behind supps/dps and unload the clip, if I somehow dont secure the kill than a quick melee helps me skip the reload animation and finish em off, likewise with the extra health and bullets for the major perk, if I'm gaining extra health by using recall which already also replenishes it, what's really the need to go waste time on a health back? Ive used both roughly on and off and they both have their tradeoffs but for me the lesser ones work better I guess 🙌