Tis a good questions. Although the idea of breaking peoples faces is a nice one. It does not really keep you in the martial art. There has to be more to it to say on.
Aikido, (without sounding to arrogant) is a gentlemans art. It is refined and graceful, beautiful. It can be compassionate and deadly. Both fast and slow.
It has swords in it. Which a reason in its self.
It has great ideals and aspirations.
You can be any Sex, Age and Fittness.
It is modern, yet has the wisdom of ages.
It is great self defence and against one and many.
it incorpateds break falls and locks.
What more could one ask for?