Easily Krav Maga (assuming it's reputable). The main problem I see with Krav Maga is not all schools are official and that means some deviate from the course. Now that's not necessairly a bad thing because Krav Maga is a system that is always evolving. As long as as the school is not too loose in its interpretation of Krav Maga, it's fine. Like, if they leave out groundfighting, that's bad. But if they add more (useful) gun techniques, that's good. Basically, be wary of Mcdojos who rip off Krav Maga. There's a school in Florida who teaches Hagannah and all he had to do was take a 5-day certification course. In Isreal, asking someone if they study Krav Maga is like asking someone if they study Karate -- there are many styles of Karate. In America, there are few schools that teach an authentic variation of Krav Maga. Nonetheless, it's a fine system.
The problem with Aikido is there is no live training, let alone sparring (which is almost as bad as no sparring). Perhaps realfighting.com says it best, "Aikido is very beautiful but the problem is the unrealistic nature of the art. There's no sparring and everything is prearranged. Students learn to assume that people attacking them will come after them in aikido fashion. It is very effective if your opponent stretches out their arms, but against a grappler they will be crying like a baby. It's beautiful to watch but I've personally seen so many aikidoists crash and burn when confronting someone with real fighting skills. There are some very effective techniques, but they are best adapted by experienced fighters." I totally agree with this statement. It's a fine system for those who have some live training under their belt. If you have some live training, I think it's okay, if the eastern culture of teaching is your thing (think Karate or TKD).
Edited by SEAL (06/20/06 08:58 PM)