Aggro one-drops are parasitic. Gingerbrute, however, can be run in all colours. It also has both haste and evasion, which keeps it relevant at all points in the game. More importantly, it promotes drafters to look for equipment, auras and other ways to boost its power.
It's even an artifact so you can run all your artifact synergies. I really see no reason not to run it over most aggro one-drops.
I often see people disrespect Parallax Wave. It seems quaint and doesn't read as well as powered cube staples, Armaggedon or Planeswalkers. But it's an extremely versatile card that can do a billion things at once.
If you are winning, it gets rids of blockers.
If you are losing, it keeps attackers at bay until you stabilize.
If you have ETBs, it blinks your whole board
If you have a disenchant, it's a plague wind.
It's a great card that can be run in both control and aggro. Every time I think it might not pull its weight, I play it and it justifies its slot. It's a powerful card but also a very interesting, challenging one.
Give me some of yours!