Item description:

1. Warrior -
This is a Level 50 Siren doing the quest Talon of God in the Vault of the Warrior.
Right before killing the warrior.
It is very good for farming Legendary items. Usually takes 1-5 runs for a Legendary.
You need two characters for this to work right. Just make sure the game doesn't save after moonshotting the Warrior.

Player 1 loads, player 2 picks up items. Can be done alone.(System Link/Co-Op)

2. Hyperius the Invincible -
This is a save at Washburne Refinery. Level 50 modded Siren (Originally Maya Orange) - Changed a few things.
Has a few Legendary and Seraph items.
The boss drop is similar to the black market seraph items.(If you are lucky in a way...)
He dropped a Norfleet on one of my game sessions on xbox live, we had 4 players in game.
BL2 DLC required:
Hyperius Farming - takes 5 minutes to get there and kill him.(Depending on who the 2nd character is that kills him)

3. Master Gee the Invincible -
So this save is for people who don't like the concept of having a boss once a day. If you like that idea, please don't read any further.
Master Gee the Invincible.
Start At Hayter's Folly with the quest.
Farm him the same way you would farm the Warrior(The storyline quest method - for higher chance at Legendary items)
1. Use player 1 to load save
2. Player 2 to pick up items
3. Player 2 leaves
4. Player 1 does not save

You can do this alone too, you just need two controllers.
This is a Level 50 Siren with a bunch of Seraph Items but only 10 Crystals.
We figured out how to kill Gee.
1. Attack sandworms till they have low health. Lure Gee so that when you kill the worm, he will be standing on or near it.
2. Have Gee step on the gushing caustic acid(Make him follow you) - This should lower his shield slowly ( If you repeat this the shield drops quicker)
3. Kite till shield drops.
4. Unleash hell on Gee( If you can) and attack him, beware of acid being spit at you.
Important tip: Standing on gushing acid causes it to stop, or if you lure Gee properly it will stop.

4. Leviathan -
DLC required! Level 95 Siren
This is a save for those people who like to open chests over and over, hoping something good will come out.
You need to run a bit though. About less than 4 minutes to get all the chests.(If you know what you are doing)
I would say there are about 12 treasure chests in the room.
In this particular save, so people don't waste their time. Hyperius and Master Gee were already killed.
How to get there from start:
!. Run to the other side of the map
2. Wait for Leviathan to die so you can run across his fin/arm
3. Hang right. Use first or second bridge. Jump to the top for the chests.
I give no credit to myself for other than posting link. A lot of things I obtained from other people. - Games save is mine though.
Thank you to everyone for helping us out. This is my gratitude.