Halflings are described as optimistic, cheerful little people who are curious to a fault, strangely lucky, and don’t really have a culture of their own, preferring to adopt whatever culture they happen to be in at the time. They make for great rogues, bards, and sorcerers, but can really excel at almost any class thanks to the excellent alternate racial traits available to them.
Ability Scores: Halflings get +2 to Dexterity and Charisma, and -2 to Strength. This makes them extremely good at both ranged combat and highly mobile melee combat.
Size: Halflings are Small, giving them a bonus to Stealth that will come in handy if you decide to sneak around. They also get a +1 bonus to attack rolls thanks to their size.
Speed: Like gnomes, halflings only get a 20 ft movement speed, and it is still affected by encumberance.
Fearless: A bonus on saves against fear effects can definitely come in handy. This also stacks with halfling luck, so you get an effective +3 against fear effects. Not bad at all!
Halfling Luck: +1 to ALL saving throws is a huge deal. However, there are several great options for alternate racial traits that replace Halfling Luck, so don’t ignore those.
Sure-Footed: +2 to Climb and Acrobatics isn’t terribly exciting, and it can be replaced by Fleet of Foot, which I highly recommend.