Seriously, riot should look into the correlation between AD scaling champions (marksmen, fighters, bruisers, juggernauts, AD casters, exc) and the win rate of which team has more.
AD can't both be the ability scaling stat, auto attack stat, early game stat, late game stat, and somehow not strong arm it's way into the best mid game stat.
oSEXYPLATYPUSo2 votesseems like if the other team would be smart and get armor items it would nullify the all ad comps
Sintama1 votes
Nope. You can make a tank super squishy.
oSEXYPLATYPUSo1 voteswhen did i mention tank?
have you not notice adcs mids tops , every one getting 
deadlychuck1 votesIt seems like it, but it doesn't.
What you have to consider is that if you build armor, instead of your offensive stat, then you end up doing less damage to them, which means they need less lifesteal to heal through your damage, which is only slightly lowered by your armor, when they've shreded 30% of it, ignored 45% of it, or build lethality.
That's all before you take into account all of the AD kits which have armor pen or shred built into them.
That's even assuming you have something like a tank on the team. Having 2 fighters + AD assassin + marksmen is going to completely annihilate a team of 2 mages + marksmen + AP assassin.
2 AD fighters and AD assassin are able to invest an item or two on defense, and still 1 shot targets, where as the mages or AP assassins can't really do that, and have to rely on the couple of hundred health that their items inherently have attached to them. Yet AD are still the ones which get lifesteal mechanics, but spell vamp was just too OP -_- yeah fucking right.
oSEXYPLATYPUSo1 votesbut to counter all ad comps and leathality arent pros building ninja tabs in pretty much all roles?
the 30 armor plus your scaling armor plus the damage reduction passive and now on the boards people are crying that they are broken and op.
and what damage are you gonna do if you cant sustain the enemies damage when you are dead ?
deadlychuck1 votesoSEXYPLATYPUSo1 votes(3)if you dont get defense to stay alive .. .what damage can you do when dead? refers to building ninja tabs vs ad comps... (1) there has been all kinds of comps... ive seen all ap comps... its what comp works vs what match up , if you see an all ap comp pick champs that have great wave clear... champs that have cc reduction, and get items that shove lanes like banner and zzrot and pick a comp that is great at siege cuz ap comps are bad at being able to siege , if vs ad comps is it Auto reliant comp? if so get items that reduce attack speed and armor... is it ad caster comps? etc there is a way to win vs every comp if you pick and build and play correctly
deadlychuck1 votes3... i'm sure it means something somewhere in your head, but your works are nonsensical
I like how you just skim over AD casters, because there really aren't any items which work against them. At least not any items that work against them better than say 
works against auto attack comps.
There isn't a way to win against every comp with many comps. That's the problem.
AD are free to invest into whatever defensive items they need, because with a 3-4 item build, they still have enough damage for them to function. AP doesn't get that luxury. In order to remain relevant into the late game, they can't afford to stop their damage growth at mid game. They're forced to get defensive stats through their offensive items.
Once you get into the game, you don't have a way to change your team comp, so often you know that you have about a 5 minute window to win the game, between like 28-33 minutes, if you have less AP. If you wait longer AD starts to out scale you, no matter how far ahead you might be. If the enemy gets ahead with more AD, then you can build what ever you want, because they've snowballed too far ahead to recover.
oSEXYPLATYPUSo1 votesso an ap champ cant get 
and be ok vs ad comps with armor runes ?
deadlychuck1 votesWell sure it can, but only when you have teammates which can reliable chase off enemies if you zonays.
After all, all that armor and HP isn't really there to keep you alive through the fight, it's just functioning to give you enough to to react to their burst and zonays to survive.
If you try to fight them in lane, with a portion of this build, then if they have any kind of ability to trade, you will get out sustained. If you try to fight them, before finishing the build, you'll likely either lack the damage or the survivability to pull it off. That's before you consider that most marksmen are going to be finished with their build by the time you finish this one, which means you'll be getting hit with ~700 crits once you factor in their armor pen. So any slight misposition or misuses of a spell, is about a 2-3 second timer on your life.