Ranking for more items/enchants:
I used EP Values listed below to rank EP lost for HP/Stamina gains in order to determine the smallest loss of EP per HP gained. Item links and math shown. Some values were rounded to the tenth.
EP Values Used:
AP = 1.0
AGI = 1.7
INT = 1.6
STR = 1.1
CRIT = 1.5
Wrist Enchant
[Formula: Enchant Bracer - Major Stamina] in lieu of
[Item not found!]
50 AP lost for 40 STA gain
50 EP lost for 40 STA gain ~ 44 STA with Kings
1 EP lost per 0.8 STA ~ 0.9 STA with Kings
1 EP per 8 HP ~ 9 HP with Kings
Leg Armor
[Frosthide Leg Armor]in Lieu of
[Icescale Leg Armor]
75 AP + 22 Crit = 75 EP + 33 EP = 108 EP lost
55 STA + 22 AGI = 22 x 1.7 = 37 EP + 55 STA Gained
Net EP Lost = 108 – 37 = 71 EP lost
71 EP lost for 55 STA ~ 60.5 STA with Kings
1 EP lost for 0.77 STA ~ 0.85 STA with Kings
1 EP per 7.7 HP ~ 8.5 HP with Kings
STA Gem
[Solid Sky Sapphire] in Lieu of
[Bright Scarlet Ruby]
32 AP lost for 24 STA gain ~ 26.4 STA with Kings
32 EP lost for 24 STA gain ~ 26.4 STA with Kings
1 EP lost per 0.75 STA ~ 0.83 STA with Kings
1 EP per 7.5 HP ~ 8.3 HP with Kings
Ring Enchant (Enchant Profession only)
Enchant Ring - Stamina in Lieu of Enchant Ring - Assault
32 AP lost for 24 STA gain ~ 26.4 STA with Kings
32 EP lost for 24 STA gain ~ 26.4 STA with Kings
1 EP lost per 0.75 STA ~ 0.83 STA with Kings
1 EP per 7.5 HP ~ 8.3 HP with Kings
Flask
[Flask of Stoneblood] in lieu of
[Flask of Endless Rage]
180 AP lost for 1300 HP gain
180 EP for 1300 HP
1 EP per 7.2 HP
Boot Enchant
[Formula: Enchant Boots - Tuskarr's Vitality] in lieu of
[Formula: Enchant Boots - Greater Assault]
32 AP lost for 15 STA ~ 16.5 STA with Kings
32 EP lost for 15 STA ~ 16.5 STA with Kings
1 EP for 0.47 STA ~ 0.52 STA with Kings
1 EP per 4.7 HP ~ 5.2 HP with Kings
Or in lieu of
[Formula: Enchant Boots - Cat's Swiftness]
6 x 1.7 = 10 EP lost for 15 STA gained ~ 16.5 STA with Kings
1 EP for 1.5 STA gained ~ 1.65 STA with Kings
1 EP per 16.5 HP
Helm Enchant
[Arcanum of the Stalwart Protector] in lieu of
[Arcanum of Torment]
50 AP + 20 Crit = 80 EP
80 EP lost for 37 STA ~ 40.7 STA with Kings
1 EP per 0.46 STA ~ 0.51 STA with Kings
1 EP per 5.1 HP
Chest Enchant
[Scroll of Enchant Chest - Super Health] in lieu of
[Formula: Enchant Chest - Powerful Stats]
(10AGI x1.7)+(10INTx1.6)+(10STRx1.1) = 44 EP lost
275 HP gained (10 STA or 100 HP lost) = 175 HP gained from the switch
44 EP for 175 HP
1 EP per 4 HP
Edit:
Cat Swiftness boot enchant added
Kings added to the calculations for stamina