Old vs. New - Battle of the Incubi

Model wise, I am a bit torn by the two models. I loved the menacing body guard look of the old ones, though I hated the helmets (C'mon, it screams "Look! I have a skull helmet so I am so frikking eeeevil!") and never really believed that they could hack Space Marines apart with those Glaives. The new ones are superior due to their more sinister and deadly look. You can imagine them hacking through power armor with those glaves and as effectivly parry with them. The helmets do scream the evilness factor, though now they seem as instruments of terror, rather than badges of office. New models all the way

As for the rules... I would throw the old Incubi to garbage if the old possibility to raid the whole freaking armoury wasnt there. That was the plus on them, nothing more. And the talk that why buying an archon with them is completely stupid, since you had to buy a archon to even gain access to the unit in the old edition. Grenades are a minus, yeah, but fleet is so freaking awesome! I think its a stale mate, though I am leaning towards the new ones.