Here's my current thoughts on the matter:
I don't believe Superman super rapes every character within nanoseconds of looking into their eyes. That's just not in character for him.
However, to counter his speed, you actually need feats from characters to contend with it. You need to present a reasonable case based on your comic characters to explain why it's unlikely. You can't just handwave it away because Superman doesn't use it all the time, you need a counter. And you know, he still has his speed even in character, so what difference does it make it he rapes him in 0.2 Carvoseconds or after Superman starts losing, if he can still whip it out at anytime? You need to be able to counter that throughout, if you can't then you can't. That is a concession if you can make zero case for your actual character.
Yes comics are important, but that goes for both sides. Superman might not rape characters off the hop, but if your character has done literally nothing to even deal with a speedy character, let alone a lightspeeder, then you're ****ed. He still has speed, it doesn't matter when he does it.
This differs however when weapons and carvers are introduced. Your intent may be to have them brawl in a small box, but it can't be a brawl, and it will never be a brawl because Superman is not retarded. He can be killed instantly by one attack and he can SUPERSEE that ****ing weapon. Whereas with a fist, Superman might be inclined to test the waters, and likely would judging by comics. For example I don't think that in a normal forum fight that Superman wouldn't get hit by Hulk if it were entirely up to me, but I also don't believe that he wouldn't also use his speed to land a ****load of shots and piledrive the shit out of him. Think a good Justice League Unlimited fight from the cartoon, that's my preferred method of visualizing fights.
Weapon H however has full sized swords, and Superman knows and can see this. Superman would not allow him to touch him with his full speed enabled. Weapon H has no feats to counter that idea, ergo, mega fukt.
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And a little off topic, but I think once you reach lightspeed or somewhere around there all these femtosecond/nanosecond/carvosecond feats just seem to be writers not understanding the consequences of these words. The only people who should really outspeed and blitz "I was going 100048 times the speed of light" boys is Flash. But that's largely my own feeling based on me perceiving it as just oneupsmanship and writers doing zero research. I think it has a place in the forum, just not in every thread as a casual "of course" answer. Say for example attosecond being used to counter a nanosecond fella. Do we really think it reasonable attosecond lad could make nanosecond boy appear as a complete statue and that's how every fight should be intended?
I'd say it boils down to a raw power off in that case but that's just my opinion. Superman still wins that more often than not, but at least it gives him an opponent if he fought say Gladiator or someone.
Something something something, Pope Carver IX will usher in a new age.