Your right snowman,mathews is sticking with the one cam and bowtech has the single cam,dual cam,and hybrid cam(equalizer cam),and hoyt has the cam and half.I truley believe they all have their own qualities people like.Thats why archery is a individual sport,what feels good in my hands might not in yours or vise-versa.
You are also right about the one cam bows being left behind,but not by everyone of course.People want to try new things and advertising sells people on these ideas.I do believe people like to follow one another on whats the best out there.In certain areas hoyt is the HOT seller,and others Mathews or bowtech.
The 3 choices you made are good ones but their are alot of other excellent companys out there,give them an honest try and make your decision on your feelings for the bow,not someone elses.If the bow isn't of high quality then the bow company oviously wouldent still be around with the demand of todays shooters.