All of the ATGs/GOATs are well rounded non specialized fighters. Fedor, GSP, Jones are all about as balanced fighters as you could ask for.
Even Anderson Silva who is primarily a stand up guy is very multi dimensional, someone who is well versed in all styles of striking(Boxing, Muay Thai, Traditional Martial arts). Pretty much nobody can pinpoint his style of striking because he really doesn't have one, he just does as he pleases.