Ok then, this is the mining path in which I farm.
I start at the violet string and farm along the red line clockwise.
I think you're asking yourself: but that's a little path and very easy!
Yeah, it is. There aren't mob to kill (apart in the greenish line, they are elité quite soloable with 66k hp.), there aren't that many players (I'm on a pve high population server) and there are a lot of spawns.
Yesterday night for example, I farmed from 1 am to 3 am and got 23 saronite ore stacks and 57 titanium ore, without counting eternals and gems.
Usually when you start farming you won't find many veins because there are other players who patrol whole Icecrown and sometimes come to this path. But after you start getting some veins, you will notices that they won't come anymore because you are farming there and getting everything, they are not and they will not find more than 2-3 veins.
This path is also short, so you won't probably miss any spawn and 1 turn will get you 5-6 minute.
I've also tried paths in Sholazar, Wintergrasp and other places in ICW but this defo the best one, because in sholazar you will also find low level players and a lot of people, in wintergrasp you will easily get killed, and all noobs can access that area (I got my 450 mining skill when I was level 73, farming there).
@Edit: Last note is that if you have Eng or Erbalism you can have a surplus: there are a lot of air clouds and I see some erbs spawning on the mountain that I patrol.. =)
So enjoy, and let me know if you will be rich =)