Things i noticed about your ferals:

Hovden: Assuming he logged in his dps gear, Not useing 2T4 (he should), he is low on hit rating and has green gems and is geming resil and stamina. He might have logged in "pvp" gear but he isnt using the trinket so I dont know. 

Exuberance: Gear has low hit rating and chest/legs are gemed for stam. Gear wont have enough crit he needs to get more agility heavy gear. Two talent points that are assigned to "Nurturing Instinct" are better spent somewhere else.

Both druids have reduced shapeshifting cost but on your best attempt only Exuberance was powersifting but is lower damage than Hov.

You mainly just wanted to show off you number 1 spot didnt you jas :P

This is mostly based on attempt 1 since that seemed to last longest, unless there's other attempts you want me to focus on.

1. They used envenom. This completely gimps Deadly Poison dps. Yea envenom will let ya see big damage numbers for the ADD in ya, but it's not good sustained dps.

2. 2 of the used Shiv, Leely used it a lot. I assumed to try to get Deadly Poison stacking again so they can use envenom. Shiv is worst DPS and DPE than Sinister Strike and this overall tactic is just bad, worst than just simply spamming Sinister Strike and Slice and Dice.

3. Heroism wasn't used in that group at all in any of the attempts.

Anyways if these are their armories, there's some recommendations too:

http://www.wowarmory.com/character-sheet.xml?r=Thaurissan&n=Drayco
- Change all AP gems and enchants into their agility counterparts.
- Get the epic version of the pants enchant.
- Drop Imp Eviscerate. Worthless in raids. Dump it into Vile Poisons, or Imp Poisons. This is a small boost and is optional.

http://www.wowarmory.com/character-sheet.xml?r=Thaurissan&n=Leely
- Get a helm with a meta gem socket, get Relentless Earthstorm, T4 or better (T5, S3, etc).
- If he absolutely doesn't have one of those for some reason, then change the blue gem in the belt to either +8 hit, +4hit/4agil, or +8 agil gems. No reason to use any blue gem unless you need to fulfill a meta requirement.
- Drop Imp Eviscerate. Worthless in raids. Dump it into Vile Poisons, or Imp Poisons. Also take 1 of the filler points from combat too. This is a small boost and is optional.

http://www.wowarmory.com/character-sheet.xml?r=Thaurissan&n=Spin
- AP gems -> Agility
- Better gem on the T5 shoulders
- Get exalted with Scryers for shoulder enchants, though I'd recommmend Aldor more for PvE purposes, it's a little bit better.
- Drop Imp Eviscerate. Worthless in raids. Dump it into Vile Poisons, or Imp Poisons. This is a small boost and is optional.

Overall, I actually found their gear to be remarkably similar. Some have lower end pieces added with higher end pieces to balance things out. e.g. The only rogue with 4/5 T5 uses Spiteblade.

Plugging spreadsheets, Leely is actually your best geared rogue. Followed very closely behind by Spin, then a bit behind by Drayco. All within 2 dps of each other.

Based on what I can tell from raid buffs, Enh Shammy, Feral Druid, Imp Hunter's Mark, Drums of Battle, Faerie Fire, Sunder Armor, Might, Salv, Elixir of Major Agility (could change to Flask for boost). They should be clocking 1200-1350 dps each in that fight.

Also comparing his Attack usage to mine half of all of his abilites used are Heroic Strike.

http://wowwebstats.com/ej4qu41z4jbny?s=6791-7016&a=23 This is the link from our best night on Teron and as you can see my Heroic Strike percent is much lower. He literally maybe spamming it and not allowing auto atks to land and using other abilities as he should give him some threat and allow rage for shield blocks. As a tank it's a fine line between going all out and conservation.

 Also I use my TPS gear on Teron.

From a pure damage standpoint, elemental *should* always beat enhancement.  There's a LOT more elemental gear itemization in endgame than there is enhancement.

However, enhancement still brings more to a raid (WINDFURY) than elemental does.