Its probably gonna be LoN Sader. Invoker might be better for pushing or it might not its hard to say after that nerf. It will be REALLY close. Wiz will always get more exp off WoW/Rasha GR 75 spam with pools(now that tal went from 2000% to 3000% dmg it will do quite a bit higher at a very fast speed), but I don't think it will be saders exp potential.
I think in terms of exp alone both will be very close. So if you actually care about playing sometimes just pick one of those two.
