I faced a Dwarf army with 37 Hammerers, 30 Longbeards, 30 Quarrelers, 30 Warriors, 25 Slayers plus characters and warmachines. Everything that could have a great weapon did. It was insane-- those huge blocks throw lots of attacks and don't take many wounds in return.
Dwarves can get hefty amounts of anti-magic with very little points input. MR of Spellbinding, MR of Valaya and a Runesmith (ok, not THAT little a points input) gives you +7 to all rolls to dispel (and crushes RIP spells).