>>82362184It depends on HOW the electricity is staggering Superman actually.
A lot of people really have no idea why electricity is dangerous or what it actually is doing to you when you're hit by it, and that translate into comics.
Arguably going by real world physics a sufficient electric charge would be vastly more likely to hurt him (though perhaps not kill him) then most other attacks because electrical shock harms you withn YOURSELF basically by causing your own muscles and nerves to spasm and contract wildly.
Now, Superman is vastly hardier then us so he could shake it off easier (and likely ignore the force and heat of the lightning bolt entirely) once it was done and his heart would be less likely to give out, but as long as his own strength is capable of hurting him (and we've seen that it is) electricity would be REALLY effective at causing him pain at the very least.
That said, hurting him a lot but not putting him down is perhaps not the best approach when dealing with Superman because in the end you're just going to piss him off more.
>>82363300The Flash's suit is sometimes not even an actual suit but is made of Speed Force nonsense.
>>82363328A character's effectiveness is directly related to their overall popularity and marketability in modern comics.
The decline of solo series and rise of nearly nothing but events and crossovers has led solo villains who previous poses legitimate threats but were less famous to take a hard backseat to superheroes and villains who ARE famous and had their overall effectiveness correspondingly increase to match their fame, which is to say "not very effective at all".