I'd make a FOrb/ES sorc and run Ancient Tombs, Andariel, Mephisto and Pindle. Then when/if you have good gear add Duriel to the list too.
But if you like to play various levels I'd go for a CB/Forb sorc, they are hilarious and rather strong when used with good gear and played correctly. Else MeteOrb, BlizzBaller or Blizz/FW are all solid choices.
I've made two mf sorcs, 1)Blizz/CLsorc and 2)Blizz/Hydrasorc.
The first didn't do any damage to the cold immunes, since I'm pretty poor.
The second does pretty well.. Hydra doesn't need that much synergys to be efficient, and is just plain better then chain lightning.
Fire wall would be probably best with blizz for a mf sorc, since it doesn't have any synergies, and you can invest lot in glacial spike..
Haven't tried it yet.