Good Alliance weapons:
1h swords
2h axe, maybe
bow
daggers
guns
good horde weapons:
1h swords are INSANE
2h swords by a long shot
crossbow
daggers
fist
guns
polearm but they are over gaudy
gnome shields, the bottom half suck/are gay
staff # 1
good pvp weapons:
1h swords
2h axe
2h swords
bow
fist
gun
polearm
staff
If I had to name favorites, it'd be horde/pvp fists, horde 2h sword, all the 1h swords, and the horde gun. Alliance really got shafted with their weapon models, most of them are terrible.