At tkasomething.com, it is generally accepted that the Wolfslayer is better than Sunfury:
http://forums.tkasomething.com/showthread.php?t=9717 (the conclusion I have put in bold, since I think it's easy to get lost in all the math sometimes)
EDIT: Oh, keep in mind this is for BM spec, i.e. 1:1 ratio. You might have to dig deeper in that thread for an answer on MM/SV specs.
Quote:
Some simple math. We will assume a 1800 RAP Hunter and ignore crits (they increase by the same ratio, and aren't important for comparisons, same for most other talents)
Auto Shot Damage (+12 damage scope, 37 DPS Ammo):
Sunfury - 241.5 + 12 + 372.86 + 107.3 = 733.6
Wolfslayer - 213.5 + 12 + 347.14 + 99.9 = 672.54
Steady Shot Damage:
Sunfury - 150 + 233.24 + 360 = 743.24
Wolfslayer - 150 + 221.48 + 360 = 731.48
Damage in cycle:
Sunfury - 733.6 + 743.24 = 1476.84 / 2.9 = 509.26 DPS
Wolfslayer - 672.54 + 731.48 = 1404.02 / 2.7 = 520.01 DPS
Until you start clipping, all haste effects cancel out as well, and the ratio of +2.13% more DPS with the Wolfslayer holds true. As your RAP increases this becomes a greater and greater ratio.
In fact, we can solve for the equilibrium point pretty easily:
(241.5 + 12 + 107.3 + .2071*RAP + 150 + 233.24 + .2*RAP)/2.9 = (213.5 + 12 + .1929*RAP + 99.9 + 150 + 221.48 + .2*RAP)/2.7
(744.04 + .407*RAP)/2.9 = (696.88 + .3929*RAP)/2.7
256.57 + .1404*RAP = 258.10 + .1455*RAP
.1404*RAP = 1.53 + .1455*RAP
.0051RAP = -1.53
RAP = -300
So, this is saying for any positive RAP total, the Wolfslayer is a better weapon in a 1:1 rotation. This can also be seen by looking at the numbers with a 0 RAP total:
(241.5 + 12 +107.3 + 150 + 233.24)/2.9 = 256.57 DPS for Sunfury
(213.5 + 12 + 99.9 + 150 + 221.48)/2.7 = 258.10 for Wolfslayer, or 0.6% better.
Folks, as was true in 1.X of WoW, weapon speed >> weapon DPS, in most cases.
In order for the Wolfslayer to clip you need to get the autoshot time below 1.5s, and to do that requires 80% haste effects. But, anything over 93% haste also causes the Sunfury to have the same problem. For that narrow 13% range the Sunfury will do more DPS, but for everything else you are better off with a Wolfslayer.
Note: If you are routinely running 2 specials every other auto, you may find the same things to be true, as the only other special that is influenced by weapon DPS is Multi-Shot. I leave those equations as an exercise to the reader (or you could use my spreadsheet, which solves them all for you.)
This kind of anaylsis is why I ditched my Karazhan weapon for a Don Santos (that and the fact that the proc is incredible in any fight over 10-12 seconds.)
Edited, Jan 29th 2008 1:35pm by Herbnosis