Modern grey matter has it that the guy on the right is better because of "conditioning'.
Height, leg length, calf length, waist size/width, bone structure, muscle shape, genetics, etc... don't figure into any equation, it's all about how low your body fat can be on a given day while being loaded full of drugs.
Women have advanced as well...an average looking girl can get a painful skin damaging sun tan, dye her hair platinum, get a set of abs, get ripped, tattooed, excessive makeup, and painfully looking plastic jammed under her pecs and ...she's hot.
Generation No Understanding of Aesthetics