For the majority of Superman's existance, a comics accurate suit, regardless of artist interpretation, has consisted of the following:
1.) Red cape with S logo in yellow
2.) Blue bodysuit
3.) S logo on the chest with yellow negative space
4.) Yellow belt with oval buckle
5.) Red trunks with 4 belt loops
6.) Red boots with both a beveled edge and V notch at the top
7.) No discernable texture on elements 1 - 6
Dramatically change or remove any of these and it constitutes a certain level of shift from the trademarked design.
What creates a subjective gray area of opinion are the proportions of each element in a given Superman suit incarnation. Some people like a larger S logo, some people like a specific shade of blue or cape length. Given some people like more exotic versions of the suit that have an S on the belt or whatever, but I'm only talking about what constitutes a version most familiar and most often used. Suit versions that have shifted from the classic elements have been either for elseworlds or anomalies that never became permanent.
I think this is the best one can do in describing a 100 percent comics accurate design. It's just that due to the transient nature of 70 years worth of illustration styles, you can never escape personal preference. The real discussion should be about coming to a concensus on what proportions of the classic elements make a kick ass superman costume, which is really what we've all been talking about for the past 100,000 pages. I know I have my own thoughts on the matter.
Or a four legged spider!
