I don't know if it is the best build.
I hope it helps!
Ranger Tempest requirements:
Action Points Spent Prerequisite: 16
Avaiable to Ranger class level 6 (or 7 because I can't remember)
Requires: Two Weapon Fighting
Requires: Improved Two Weapon Fighting
Requires: Dodge
Requires: Mobility
Requires: Spring Attack
As strength determines the damage bonus for every hit, this particular ranger build can deal good damage making it a formidable melee and can actually be a frontline combatant if the situation calls for it. The ability to be effective in ranging can suffer a bit because of the relatively low dexterity score. The Wisdom score is also quite low but it is enough to get a decent amount of spell points to buff party members with necessary spells like Bark Skin, Jump, Resists, or Protection. Will saves will also suffer a bit because of the low Wisdom score.
28-PT BUILD
Class: RANGER
Race: ELF
Alignment: Lawful Good
Starting
Base Stats
Abilities (Level 1)
Strength 16
Dexterity 14
Constitution 14
Intelligence 8
Wisdom 12
Charisma 8
Modified Stats (without items)
Abilities (Level 16)
Strength 20
Dexterity 16
Constitution 14
Intelligence 8
Wisdom 12
Charisma 8
Hit Points: 198
Spell Points: 250
Fortitude: 12
Reflex: 13
Will: 6
FEATS AND ENHANCEMENTS
Level 1 (Ranger)
Feat: (Favored Enemy) Favored Enemy: Undead
Feat: (Selected) Weapon Focus: Slashing Weapons
Level 2 (Ranger)
Level 3 (Ranger)
Feat: (Selected) Dodge
Level 4 (Ranger)
Level 5 (Ranger)
Level 6 (Ranger)
Feat: (Selected) Mobility
Level 7 (Ranger)
Level 8 (Ranger)
Level 9 (Ranger)
Feat: (Selected) Improved Critical: Slashing Weapons
Level 10 (Ranger)
Feat: (Favored Enemy) Favored Enemy: Giant
Level 11 (Ranger)
Level 12 (Ranger)
Feat: (Selected) Spring Attack
Level 13 (Ranger)
Level 14 (Ranger)
Level 15 (Ranger)
Feat: (Favored Enemy) Favored Enemy: Evil Outsider
Feat: (Selected) Toughness
Level 16 (Ranger)
Enhancement: Elven Dexterity I
Enhancement: Elf Melee Attack I
Enhancement: Elf Melee Attack II
Enhancement: Elf Melee Damage I
Enhancement: Elf Melee Damage II
Enhancement: Elf Ranged Attack I
Enhancement: Elf Ranged Damage I
Enhancement: Elf Ranged Damage II
Enhancement: Ranger Extra Empathy I
Enhancement: Ranger Extra Empathy II
Enhancement: Ranger Favored Attack I
Enhancement: Ranger Favored Attack II
Enhancement: Ranger Favored Damage I
Enhancement: Ranger Favored Damage II
Enhancement: Ranger Favored Damage III
Enhancement: Ranger Favored Damage IV
Enhancement: Ranger Favored Defense I
Enhancement: Ranger Favored Defense II
Enhancement: Ranger Favored Defense III
Enhancement: Ranger Favored Resistance I
Enhancement: Ranger Favored Resistance II
Enhancement: Ranger Favored Resistance III
Enhancement: Ranger Item Defense I
Enhancement: Ranger Tempest I
Enhancement: Ranger Energy of the Wild I
Enhancement: Ranger Energy of the Wild II
Enhancement: Ranger Dexterity I
========
Notes:
1. You can choose a Favored Enemy based on your preference. Normally, players choose the creatures that have several appearances at the quests they love to do. Undead is chosen at level one because of XP-rich low to mid-level quests in House J where the Undead are the main villains. Besides, there's a whole area that the Undead consider as home: Necropolis.
2. Dodge, Mobility, Spring Attack feats are all requiremenst for the Ranger Tempest build.
3. As you can see from the Enhancement list, you can only get the Elven Dexterity I and Ranger Dexterity I because of the Tempest requirements. This means that you can only get your Dexterity to certain level and not maxed out. There's no need to be bummed about this because you can get a +2 or +3 Dexterity tomes as you keep playing.
4. Elf Melee Damage and Elf Melee Attack only applies to Longswords, hence this build will rely heavily in using Longswords. Rapier is a light weapon and will be more effective if used with a Dexterity-based ranger.
5. Weapon Focus: Slashing is a must since you will be using Longswords and not Rapiers.
6. Toughness is quite important for Rangers because there are times when they get way to much aggro. However, if you feel that your AC is enough to withstand attacks, then you can replace Toughness with Power Attack for additional damage when you hit. If you are sticking with Toughness, the Elf Melee Damage enhancement is enough to compensate for the lack of Power Attack.
7. Armor Class for stregth-based rangers will look something like this:
10: Base
08: Light Armor
04: From Dexterity score
02: Chaosgarde (from Xorian Cipher)
05: Protection +5 item (ring, cloak, necklace, etc)
05: Barkskin spell
02: Tempest ranger enhancement
05: With Shield (optional)
39: Total with shield
34: Total with Two-weapon fighting