Freestyle by far, Greco stupid origins turns me off.
I prefer Freestyle but think Greco is arguably "harder" to do. I tried my hand at Judo for the first time about six months ago. and not being able to attack the Legs was very frustrating. I had to use waay to much gas, and strength to get the dude down. that and he kept just kinda backing up oh well.
From my experience, Greco is where freestylers/folkstylers who didn't make the cut for major tournaments end up trying out for. It's usually a "Go-to" style of competition rather than only training in it. There are a lot of exceptions of course, but this tends to be the general trend i've seen. My buddy missed the cut for the olympics in freestyle, then went for greco as a consolation. Missed it in the finals. This is generally what i see in wrestling Canada. Places like Iran etc might be different.
I prefer Freestyle for the same reasons above being more complex/more options, but the real question is...Folk or Free? :icon_twis
^ I'm well aware, having done all 3 and coached wrestling.
My perspective has always been from both discussion with others, and competing: Freestyle makes more technical wrestlers, folk style makes tougher wrestlers due to the hard headed nature of riding and not conceding points. They seem to have a better understanding of do or die, due to the rule set.