Picking a Race
Each race starts with different stats in the four primary attributes for rangers. You should choose your race based on the starting stats, and which build you are going for.
Based on this, Lurikeen make the best Snipers, Celts make the best Ginsu's, and with a balanced spec you can choose whichever you prefer (Celts last longer in close combat, but are not as good with bows as Lurikeen). If you love playing an elf, however, they are really not that far behind. The resistances are a nice bonus, but in my opinion do not have too much impact on your starting race.
Placing Attribute Points
You receive 30 attribute points you can place on the character creation screen. The first 10 points you put into an attribute (Strength for example) will provide an increase of 10 Str (1:1 ratio). If a person decides to add another 10 points to the same attribute it will provide only an increase of 5 Str (2:1 ratio). If the person decides to add the last 10 points to the same attribute it will provide only an increase of 3 Str (3:1 ratio). At most, you can raise 1 stat by 18 points by spending 29 of your starting points. Because of this, putting all your points into one attribute is not recommended. You will get the most benefit by spreading the 30 points out between at least 3 different attributes.
I recommend that all rangers place at least 10 points into CON, no matter what race or build you choose because it will increase your survivability. The rest of your starting points can be spent depending on what type of build you are going for. With a Ginsu I would recommend placing 15 points into Con and 10 into Str. For Snipers 10 Con, 10 Dex, and 10 Qui would be best; and for the balanced template I would usually recommend the same, or you can place 10 points into Str instead of Dex or Qui if you chose a Celt and plan to spec Blades.