1ST pact should scale with character level not warlock level. this will make multiclass viable while helping warlock getting ready for epic.
2ND pact should give normal EB damage bonus, not specific alternative damage. Pact should act as an EB essence, when toggle it will convert all your EB damage to specific type of damage. (fey: sonic, Fiend: Fire, Great old one: Acid)
3RD Pact ability need to get addressed~~ not all pact should grant new spell, especially those useless one.
4TH regardless of which essence you use, your EB will always use force spell power and kinetic lore.
Fey: (cc focus)
Level 1 warlock bonus ability
Fey Pact: You gain 1d4 eb damage every two character level, and gain blast essence: vibrant Blast
vibrant Blast: Convert all your EB damage to Sonic damage.
Level 2 warlock bonus ability
Beguiling Defenses: You gain +1 save/character level against enchantment(+30 save against enchantment at level 30)
Level 6 warlock bonus ability
Misty Escape: Ddoor SLA
Level 12 warlock bonus ability
Dark Delirium: Mass confusion SLA: dc= 10+ character level + highest stats mod (cooldown 30 sec)
Level 16 warlock bonus ability
Fey Presence: No fail "Mass Suggestion" SLA (cooldown 5 minute)
Great Old One: (pet focus)
Level 1 warlock bonus ability
Ancient Pact: You gain 1d4 eb damage every two character level, and gain blast essence: Vitriolic Blast
Vitriolic Blast: Convert all your EB damage to acid damage
Level 2 warlock bonus ability
Thought Shield: You gain +1prr/mrr every character level(cap at 20), Also gain feat: "Force of Personality"
Level 6 warlock bonus ability
Entropic Ward: You gain 1% dodge for every 3 character level(10% dodge at 30)
Level 12 warlock bonus ability
Awakened Mind: "Dominate Person" SLA dc= 10+ character level + highest stats mod (cooldown 30 sec)
Level 16 warlock bonus ability
Create Thrall: PERMANENTLY make one none boss your willing lackey(no save), It will follow you through the entire quest but will not leave quest with you. (cool down 5 minute)
Fiend(melee focus)
Level 1 warlock bonus ability
Fiend Pact:You gain 1d4 eb damage every two character level, and gain blast essence:Brimstone Blast
Brimstone Blast: Convert all your EB damage to fire damage.
Level 2 warlock bonus ability
Dark One's Own Luck:You may now add your Cha mod to all your save(divine grace)
Level 6 warlock bonus ability
Dark One's Blessing: Whenever you kill an enemy you gain a damage shield equal to Character level + charisma score
Level 12 warlock bonus ability
Fiendish Resilience: you gain 1 Dr/silver for every two character level. (dr 16/silver at level 30), also 1 resistance to fire for every character level
Level 16 warlock bonus ability
Hurl Through Hell: you howl to paralyze all enemy around you (no save) (cooldown 5 minute)