I haven't been able to make much progress with school deciding it's going to attack me with all the homework ever made. So far best Magnemite is this:
Magenmite@Modest
Magnet Pull
13/31/14/31/21/27
It's decent I'd say, but the speed points put me off somewhat, so I'm still breeding this thing. If you don't care, you can stop it, but I'd keep it going.