Let's do longsword, then. Just make it magic, or give it some other enhancement too? Maybe defending or mighty cleaving if we haven't used one of those yet?
Since these are the rank-and-file, why don't we give them ability that any weapon they wield is treated as a +1 mighty cleaving weapon? That way the aftermath of an angelic battle vs. fiends won't be littered with magic weapons.
Ok, so we just need an ability to have the weapon not work for anyone else. How's that usually worded?
Weapon (Su): Angels of the 9th order carry +1 mighty cleaving longswords or +1 mighty cleaving warhammers. If separated from the owner, these weapons become ordinary, nonmagical weapons. Their magic is an inherent property of the angel, not the weapon.
While that will work, I was thinking more along the lines of...
Holy Armaments (Su): Any nonmagical melee weapon wielded by an angel of the Ninth Order is treated as a +1 mighty cleaving weapon. Should the weapon be separated from the angel, it loses these bonuses.
Ready for feats? Power Attack and Cleave are required, unless you want to make Cleave a bonus feat. Actually, I kind of like Cleave as a bonus feat, given the inherent ability of the weapon. What do you guys think?
Skills: 11 at 9 ranks
Give 'em all the common angel skills (Concentration, Diplomacy, Knowledge (any x), Listen, Move Silently, Sense Motive, Spot), and from the less common angel skills, add Hide, Intimidate, Search?