I love Aikido. I continue to train in Aiki, but I don't think it is an effective art when practised alone. I think the art is beautiful, but I don't think Aikikai Aikido, Daito ryu even Tomiki is advisable for self protection. If we read the 'history' books concerning Takeda Sokaku, we are told of a tiny man who killed dozens of bigger, tougher men using his art. Maybe he did, maybe he didn't, but if he did, he was just a tough man who was trained in Daito ryu. This doesn't make Daito ryu effective, or even it's latter form of Aikido. I too have trained just a little in Capoeira, and personally I don't think it's effective for self protection. It's great for fitness, flexibility and meeting hot chicks though, so in that respect, it has my vote.