My Ranger is a dual-wielder, both because he's a 3e holdover, and because that fits his style. Also, he's an Elf with a 20 DEX, so I figured he could afford to skip the archery style...
With the exception of the bow, all of his weapons are rather unique. For most TWF, he uses a set of claws. Like spiked gauntlets, these cannot be disarmed. They do better damage, and are Slashing/Piercing weapons.
His bows range from the composite longbow he had at first level, to the Masterwork Mighty Composite Longbow +2 that he bought at third level, to the MMCLB +3 he got at fourth, after increasing his STR, to a MMCLB +1 and a plain old Masterwork CLB that he bought in case of Ray of Enfeeblement or Shadow touches, to the six normal LBs taken off dead foes. The MMCLB +3 he carries, in hand; the rest are in the two Quivers of Ehlonna.
He also carries a Longknife (treated as a shortsword, when wielded in hand, but can be thrown as a dagger) and a combination Handaxe/throwing axe/hammer/prybar, and a Cable/Chain (which is like a 10' Manriki-Gusari without a hook). Basically, it is a Spiked Chain without the spikes, and can be used for TWF, as well as two-handed, although it does only blunt trauma. It, too, is an Exotic Weapon.
So, he normally uses the bow, then the claws. The knife and axe are more tools than weapons. The cable is for skeletons, and other things which require blunts, and for long-distance trips and disarms. He also has Improved Unarmed Strike, and so can be pretty good even unarmed (and somewhat scary, if the GM allows claws and fists to work together)!
The ability to switch from one to another gives him a great deal of versatility. He also wears a pair of belt pouches with missile weapons such as Alchemist's Fire, Holy Water, Acid, Tanglefoot Bags, and Thunderstones, for handling problems (such as Trolls) not amenable to take-down via more normal weapons...