User blog comment:Odisseas25/Why does the AP go to mid?/@comment-68.144.165.245-20130210043050

why are botlanes bot:

dragon control, having 2 ppl down there offers better dragon control

we need to protect the ad and sidelanes are safer. mid can get ganked (easily) from bot top and jungle. sidelanes can only get ganked from mid and jungle.

bot lanes require a bit more room (longer lane) to secure a kill. after some initial dmg is laid down, they usually need to chase to get a few more autoattacks in. in a short lane like mid, the enemy would get to turret before you could kill them

why ap mids mid:

they have the burst to still be able to kill with a shorter lane

easy access to sidelanes for ganks. remember, another job of mid is to use their mid-game power and wave-clear ability to help out other lanes. it's closer from mid-top/bot than from one sidelane to the other.

closer to blue (though the practice of giving blue to mid came after the current meta had been established, more of a coincidence really)