I wanted to wait a couple of weeks after 2.1 to post my own differences between the 3 trees in fights where "easy" is not a term widely used yet that defines the fights I had parsing. My logs are only from Serpentshrine Cavern and Tempest Keep, specifically Void Reaver, Hydross, Tidewalker, and Al'ar.
There are a lot of Hunters that come here asking "whats the best spec?" and I still hold true to the fact that it depends greatly on your own play style and what you are most comfortable playing as. As I'll show you, all 3 trees are capable of great damage output, but some are definitely better than others depending on certain factors.
Week 1 (right when 2.1 hit)
Hydross kill with
5/20/36 Survival build:
http://netigen.com/kuya/wws-20070522-Hydross2.1/
971 DPS (with a Feral druid - no shadow priest)
Void Reaver with
0/36/25 (38/23 type like 2.0)Marks build:
http://netigen.com/kuya/wws-20070501-VoidReaver/
721 DPS
Tidewalker kill with
5/20/36 Survival build:
http://netigen.com/kuya/wws-20070523-Tidewalker2.1/
869 DPS
Week 2
Hydross kill with
41/20/0 Beast Mastery build:
http://netigen.com/kuya/wws-20070529-Hydross/
1068 DPS (with a Feral druid - no shadow priest)
Al'ar kill with 12/46/6 Marks build:
http://netigen.com/kuya/wws-20070529-Al'ar/ <-- cut/paste this link
751 DPS
Void Reaver kill with
12/46/6 Marks build:
http://netigen.com/kuya/wws-20070529-VoidReaver/
769 DPS
Conclusions so far:
Survival 2.1:
Very gear dependent. You need to take the time to throw in all 8 agi gems into all your sockets and get every agility enchant available. This spec, to me, really shines the most with a minimum 33% unbuffed crit level because of EW and ToTH procs. The mana that you save with this build is really amazing and you can see it in the WWS logs on mana returned from that wonderful 3 point talent. If, however, you are a Hunter that is regularly grouped with a shadow priest such as myself, it gets to the point where you cannot burn mana fast enough even if you tried quite literally. I believe this build with the proper gear and a great knowledge of shot rotations can out-DPS the marks tree currently. The proof is in the pudding. The other Hunter in all my logs who served as an excellent control and who I might add I consider my equal is 36/25 Marks in every single one of those WWS logs. He is always full raid buffed, potted, and in the same group as me for every run.
Marksman 2.1:
While the Marks tree has always been something dear to me I am really to the point now where I can't see it pulling ahead of the pack when compared to the other 2. Even with an unbuffed 2350 RAP @ solid 30% to crit with max hit this spec CAN put out huge numbers......but not "sustained" numbers. There just seems to be a drop-off in sustained dps from the MM tree that the BM tree and even the SRV tree don't suffer as greatly from. Possibly the lack of sustainability in terms of mana and the dependence of 3 shot rotations for maximum output, (arcane, steady, multi). The biggest flaw I have seen here is the inability to always use Multi-shot which is a bread-and-butter DPS boost for this tree considering you're investing 6 talent points which you can only use "some" of the time because of CC'd adds, aggro issues, etc. Don't get me wrong, MM is still a "Decent" tree, but after trying the other 2 trees in 2.1 I'm not too impressed anymore.
Beast Mastery 2.1:
Never thought I'd really believe it, let alone say it, but this spec with all variables in unison can pump out insane sustained DPS. What I mean by variables is: Your pet can be used and has moderate to low risk of sudden death and you have good paladins in a raid that are not anal about buffing your pet with BOK/BOM/MOTW/ etc. Last night's Hydross as BM pushed DPS that exceeded or matched 1100+ spell damage Warlocks / Mages that were seeding and AOE'ing almost the entire fight. Now to me, thats pretty damn unheard of. As hard as it is to micro-manage the pet, use KC at every opportunity, (I don't use macros), steady shot in perfect rotations, and everything else required to stay alive, I really think that the BM tree, (while it'll take getting used to), is what I will be sticking with for full-time raiding from here on out. The Survival tree would be my close 2nd choice because it truly is a lot better now than it was in 2.0 even with the band-aid fix to the Survival Instincts talent.
Anyway, I hope this gives you all a little more perspective from my own POV.