All Might's power is more constrained to short bursts of power, while Superman's power is constant with short bursts of weakness in the face of certain rocks.
Some people simply can't enjoy the concept of an all powerful character that remains super strong in their base form, and that's okay.
Anyone who calls you edgy, or contrarian, is probably retarded. Superman fans are almost exclusively concentrated to those who like his stories because there's emotional depth to them, and they like seeing Mr. God struggle with everyday problems that being super strong can't reasonably fix. You're hardly ever going to see someone who likes Superman because he's the strongest hero.