RE: Attack damage vs Attack speed
Okay let me try this again, unless you scale directly with AS like Vayne or Kai Sa, getting double zeals early isn't worth it cause more damage means more burst, easier kiting and more ability damage.
ATTENTION: Please watch the gifs or go to practice tool before commenting, MORE AS does not always equal MORE DPS
https://gyazo.com/593ce635648c746f5ecd5876942f5d95 https://gyazo.com/41238ee2ccbd1ea4fb0e0366649a94f0
This is all im arguing
vs

(i put zeal so i dont have to explain to people again that i in fact do understand that Jinx works well with Runans or that Draven can really abuse that extra range of a RFC, so just imagine a completed zeal item of your choice)
By mid game when you finish your third item, anyone building even
will have very well over 100 armor, a tank will already have 250 armor easily, getting more AS will not in fact give you more dps than getting a LDR unless youre Vayne.
https://gyazo.com/ae4839b793167ce6d64cb75d89e41afa, this is a level 13 Jinx, she has with only +6 armor rune 72 armor already, and that's the lowest you'll probably see on the rift in mid game, https://gyazo.com/3e3ce8bd3f4dacb021a1e05551056790 this is an example of mid-game mage with only Zhonya, 101 armor, like i said a tank or a tanky support will easily have 200 or more.
Again what im trying to argue is that by having more damage you have higher burst, as my first gif shows, higher ability damage (again unless you scale directly with AS) and easier kiting.
Also with some specific adcs like Sivir you can actually go
for 75% crit.
Now for some added explaining, Tristana E benefits greatly from damage and Arpen, you in fact will deal more ABILITY (key word ability) damage to a turret with IE Zeal LDR than double zeals, and more than likely will deal same dps anyway.
You in fact will burst harder on any champion, i dont know why this needs explaining but if your abilities deal more damage while your dps remains the same you in fact will burst harder.
This also strangely needs explaining but the difference between 2 zeal items and 1 zeal items is 30% AS, so you're not comparing 2.5 AS to 0.8AS youre comparing 1.26AS to 1.45 at lvl 13, with tristana Q ,one zeal item is 2.0 AS, 2 zeal items is 2.17.
Also i cant believe it but this needs explaining too, difference between 50% crit and 75% crit is , you guessed it, 25% crit, since some people argued like there's no crit involved.
Bottom line is, going for a
instead of another zeal item on
or going for
on
Will in fact give you more burst, more ability damage, better dps against anyone with at least 1 armor item and if not then completely equal dps, and easier kiting due to lower AS and higher Damage
And please for the love of god, more damage equals stronger crits and stronger non crits too, don't compare 350 damage crits to one another cause more crit and as means less damage per crit and non crit too, AA dps will remain roughly the same while buying 5600 worth of AS and crit will not have any effect on your ability damage