Level 60 - Kunark
Raid setup:
3 groups @ level 60. Using mostly Elaborate Defiant gear (few pieces missing), intricate defiant jewelry from vendor, and the same HP food mentioned above.
War/Clr/Brd/Rog/Rog/Mon (Rogues, cleric, monk with epic 1.0)
War/Clr/Shm/Brd/Ber/Ber
SK/Shm/Enc/Ber/Ber/Ber
Main tank stats:
Now on to some fights:
1. Ixiblat Revisited - He got destroyed with the three groups, melted in about 20s
2. Chardok King/Queen - I fell into the King room and pulled King + 8 sarnaks, we still annihilated them. Cleric in MT group ended with about 20% hp, the fight lasted ~2 mins to kill all the adds
3. Talendor - Absolutely evaporated, went from 100->50% HP I think from the SK harm touch. Died within ~20s
4. Zordak - Finished another cleric epic and killed zordak again. Absolutely no issues with him at all.
5. Nagafen - Did an Agent of Change version of Nagafen, again, melted.
6. Severilous - Killed with one group (War/Clr/Brd/Rog/Rog/Mnk) No issues at all, most fears got resisted.
7. Trak'anon - We were able to spawn an instance through agent of change to get a fresh level 60 instance of Sebelis! Pretty awesome. We fought down to trak and smashed him. He lived ~60seconds. This was 2 groups, each controlled by one person. From here on out will try to only do one group per person. In Kunark that will probably be overkill, but Velious dragons might start putting up a fight. Here is DPS for trak:

8. Echo of Nortlav (classic) - killed easily with 1 group
9. Faydedar - Killed easily with 1 group
10. Venril Sathir - Killed easily with 1 group
11. Garudon (Veksar) - he was a red con level 70, hit very hard and very fast. I think we got him to ~90% with one group before wiping. Will re-visit this with more firepower.
12. VP !? - Seems this is the revamped version even in AoC, but going to try anyway with a couple groups worth of chars to see how far along we can get.
- Edit - Went into VP with 6 groups of level 60s. The trash we killed no problem. We tried Silverwing twice. First time we didn't have levitates so gravity flux ruined everything. Second time we went in a bit more prepared with everyone autoassistat 100. We got her to 35% but ended up losing healers and dying. Possibly could try her again and get some better aggro up front with the tank. This may be something we revisit before leveling past 60. It is definitely tough though. Maybe bringing another 2-4 groups will even the odds a bit.
Edit: Just wanted to update, we went into NTOV a bit today and the dragons in there felt harder than Silverwing did. I'm going to setup a more accurate parser to get a better idea of how much HP the bosses have.
13. Cazic Thule (and dracolich) - First time I tried CT with 4 groups (1 player), and wiped due to all the trash in fear adding on the fight. The second time I parked the groups in the corner by succor point, and kited the zone with a bard. After the initial aggro on CT, I kited him around to the corner then pulled him with an SK to the main group. The fight still took ~5+ mins and was a pain but since he kept booting us into the nearby wall everyone could re-engage quickly. Here is the DPS chart, was happy to see the top 3 spots held by DPS with their epics (2x rog and a monk) CT was level 70, I think this would have been difficult with less than 4 groups.

14. Just beat Korukust down in Chardok: Hall of Betrayal. Took just a few minutes with the four groups, did not hit very hard. Was a pretty cool zone, all the trash is regular group content though. He seems to be the only raid mob in the zone. Probably doable with one defiant geared group at level 60.