Depends. How effective do you think hitting someone with a planet might be? How about learning how to fall and not get hurt?yeah i've heard bjj and wrestling are very good but one of my friends said that judo is bad in a street fight. Is that true or no?
Reality check: for most people today, especially many of those taking martial arts, the closest they'll come to a real physical self defense situation will be class. But I'll bet dollars to donut crumbs that they'll fall down...