Is there a personal Elo System? (Outside of rank?)

[Koltik]

Do you think there should be personal Elo?

Yes. There should also be placement matches.

By the way, they tried stricter match making before and it completely killed PvP. Queues would take 30min+ to match people together, and eventually people stopped waiting. This was back in the original 2.0 PvP system.