You people are ......SICK! Now, I have the song and THAT image in my head!
C'mon, dancing Obliterators is epic.
So, is Street Wise Sally.....But, I try to keep her out of my head, too.
I like to equip 2 troops in a Chaos Raptors squad with Meltas and equip 2 troops in a Plague Marine squad with Plasma for rapid fire (and Feel No Pain to help alleviate any Gets Hot rolls)...
But with IGs ability to take Lascannons like they're going out of style AND the bring it down order, how in hell does a Carnifex get within 12?
Do not forget that melta have a great ability in instant killing toughness four models.
On the down side; meltas only have one shoot, but during two turns the melta would be better as it allows you to assault also. Hard to say what would be best thou; but with the new damage table to vehicles I really like the higher chance of penetrating and the plus one on the damage roll due too it being AP1.