This is how I play my Top champions such as
and others. It's my playstyle that got me out of Bronze and it's the way that I play. So 100% OPINION.
TOP TANKS ONLY
VERY PASSIVE- You only want to farm till lvl 6 before you do anything and even after you still want to only farm for the late game and scale up.
9X scale armor Reds// 9X scale HP Yellows// 9X scale MR blues// FLAT Armor
PASSIVE- You do trade early but not enough to make a difference as you still want to focus on cs but not afriad to fight it out from time to time
9X flat Armor Reds /// 9x Flat armor Yellows /// 9x Flat MR Blues// 3x Flat Armor Q's.
Att speed runes are good for split pushing and more so for a fight farm fight farm type of playstyle in lane.
Armor pen are good but honestly I like Flat AD more, it makes CS'ing easier also.
Flat Runes vs Scale
Depends on your playstyle honestly, if you just want to farm and not push out the wave and just last hit I recommend Scale runes but if your the opposite yes go with flat.
For me when I play top and I'm using my Scaling runes I know I NEED to play passive and smart but by level 6+ I'm close to 2X stronger than my opponent if I keep up on CS and not die. Also helps if you do die early that you have the scale runes as a "back up safety net".
Think of it as like Goku or any other character from Anime or a super hero where at the start of the game your at your weakest but longer the fight goes(Lane phase) the stronger you become.