So I've been doing some math.

Why do runes favor damage over tank and utility so badly?

Full tank/level runes net about 1740 gold worth of armor and mr.

Full damage/level runes net about 1870 gold worth of damage.

Full ap/level runes net about 1848 gold worth of ap.

Pure mana regen nets about 1500 gold worth of mana/5 (at level 1 worse at latter levels)

Mana per level nets about 1600 gold worth of flat mana.

I mean come on, can we stop playing favorites already? Are runes just like lee sin where we can't normalize them and balance them?