iT's jhard to judge really.....The Ali from the 60's is the Ali that dazzled the world with speed that no one could ever imagine before him coming from a heavyweight....the way he fought with his hands down ect...he was still a work in progress though.....Yet everything he did was based on pure skill alon and ability...

The Ali of the 70's was more polished even though unortadox he had the experience...he lost some of the speed but made up for it with ring savvy...he knew how to do things to offset opponents to make up for some of the things he had lost......

I can't remember who said it first but one statement that best describes Ali of the 70's is...."The worst thing to ever happen to Ali is he found out he could take a punch"......

Up until 75-76 I think it is a pick em...depending on which style you preferred.....Either way both versions were great...