AP or AD scales better?

Depending on the champions

nobody scales better

AP champions fight low resistance (between 30 and 150 mr) targets with enough penetration to get nearly true damage on squishies while spending 4k gold on it AD champions have better DPS except assassins and juggernauts who had their attack speed all trashed by Riot

AD champions are generally more mobile AP champions generally all have better utility

Of course AD champions scale much better because of their much better itemization/runes/kits (insane amount of armor pen and true damage).

That's why full AD = about 50% win rate while full AP = guaranteed lose

AD scales better. 300+1.0AP (with 800AP) is 1100. 300AD x 2.0ASP (which isnt hard to reach) is 600/s without factoring in crits. The glass gattling cannon will ALWAYS scale harder than the glass cannon. Its the difference between a single warhead and a volley of warheads; the volley will ALWAYS hurt more.

I tested a long time ago, but i highly doubt its different; a dedicated burst mage (1000+AP, Fully stacked mejais, potion, baron, no boots) was outdamaged in about 4 seconds (the time it takes average mages to get a full rotation off) by a marksman with the old 100% crit build who had boots.

AP's have mPen and AP

AD's have AD, Crit, AS and aPen.

AP's deal true damage to anyone with 55 MR if you build full aPen.

AD have more options to deal more damage.

In short, too much damage.

AD scales better in terms of abilities, as those abilities tend to have a high ad ratio.

AP champions have the luxury of frontloading their damage, have greater range, and tend to have a lot of utility compared to AD counterparts, in exchange for AA damage and “they can miss” snickers

And since AP conversion damage to towers has been buffed over the years, they also knockdown towers with relative ease.

There’s a reason why most Hybrid champions just opt into AP over AD.