I'm on a 120/10 connection with near-perfect connectivity but fail to dodge AoE's almost ALL the time. Getting hit up to 3 seconds AFTER leaving the AoE field is just bollocks. On my archer, the only thing that helps is constantly being on the move.

This is partially to blame that I play on a JP data server (I had no other choice at the time) from Europe, though. But I doubt transferring to a NA/EU server will make it any better inside instances.