My results were
AQ: 1/3 and 1/3
I duo'd both AQ clears and went in as a feral druid for the rest. I'm fairly gimpy, 2 pieces of LFR gear and missing one enchant/meta. My average dps runs between 25-30k on my druid.
AQ: Vicidious, I couldn't shatter him with timewarp up. So we reset him and I respecced into treants. This was easily enough to shatter him. I think a Barov peasant trinket would work too if you need melee. I'm an engineer, so I've also the option of the old compact reaper kit. With christmas coming up, we'll have mechanical grinches. Snake trap does work btw.
Naxx, Patchwerk gave me trouble. I had to spec out of resto and into bear to kill him, everything else I killed as kitty. Gluth I thought I was going to wipe, I had forgotten his mortal strike debuff. But I hit dash and was able to run around, it fell off, used heart of the wild to heal myself a bit. The zombies weren't a problem. He did heal, yes, but my dps was greater than their healing. It just delayed things a bit.
MC, you must clear except Lucifron to get to the harbringer. If you kill giants, keep blood of the mountains. They sell well to people doing the legendary. Same with ingots.
BWL: Razorgore took some learning, I found this post on the main forum helpful. Still a very tight fight though.
Edit: Little more detail
When I did Razorgore, I was feral but you get switched out to caster form when clicking. WHen the first mind control broke I did go ahead and kill some of the adds by me. But I had run Razor back, so most of the ones that had been on him, went to me. THen I got him again, I think he had about 1/3 of them on him and ended up maybe 15% health. I was down to half health.
The adds on razorgore will aggro your character instead of razor if they are in close proximity to you, so they really only attack him when he is at the far end of the room.
What you want to do is break the eggs nearest to you, then move down one side, breaking eggs as you go, to the far end of the room and break all the eggs down there. Then you want to run razorgore back to near your character, and all the enemies that are attacking him will attack your character instead. Now you can break the rest of the eggs without worrying about razor taking too much damage. However, all these mobs are hitting you, so you'll want some kind of passive health regen.
I did it on an 89 warrior specced prot with second wind and I also did it with my warlock using grimoire of sacrifice.
I went back into Naxx this morning on my even less well geared DK. No dread wastes gear, 1 -2 pieces of dungeon gear. I was able to clear everything but Gluth with a little trial and error. Got Maex's pet again and nothing off Loatheb again.
I did Anub Frost, Grand Widow Blood, Maex Blood, Noth Frost, Heigan Frost, Loatheb Frost, Patchwerk Blood, Grobbulus Frost. I tried Gluth once each as Frost and Blood. Blood was horrid, only 95%. Frost I got him down to 25ish but when I tried using my talented sprint to shake off the mortal wound, I wasn't speedy enough and it was too short. A little more dps or a sprint pot might serve me here.
Another interesting note. I did Saph directly after Loatheb on my druid. I had the buff up that makes you have no threat, so my treants and ghost iron dragonling ended up tanking for the first 25% or so. So if I'm still feeling gimpy next reset with my DK, I may try clearing to just before Loatheb and Gluth. Killing Loatheb then sprinting over to Gluth while I've got the threat debuff and hitting army.