Progress and evolution in tecnologi.
All have their own prefferences. I want an logical wearable armor with tecnical specs and design that looks logic to wear.
I like the old school version and the Civil War version in the comic. But a suit with that design got some tecincal aspects that is not logic for a real person to wear an armor like that where espcecially the legs are coverd with a "spandex" armor.( an armor that is tight to the suit.
I like the new design because it looks logic to wear. It has movable joints, sliding panels that allows the movment he can and restric him from comic version movments that is not logic or natural.