Axes are for melee DPS. Hammers are for Melee tankers.
Go to Thottbot.com. Then run a search for weapons with the highest DPS. Then run a search for highest Crit rate, and one for AP. AP and CR are very important to a shammy! Axes and swords have the better numbers. Along with daggers. Axes are Better if you don't have the resources to make all. Blunt force VS Sharp edges.
I use all Blacksmith armours and weapons. Keep in mind that you can change your Master choice at any time. Only learn recipes for items your are going to make.
Fact of the matter is. All that DPS isn't anything. If you don't proc and hit hard. Use them all depending on spec.
Personally, I think. A resto/ehn, or whatever shammy. With just Thundering strikes can hit hard as hell. That talent is the meat of the entire tree. (in my PoV) And pack a major punch with your spell damage.
Try it out. Can't go wronge with, 1.5k earth shield procs, around 30% crit rate, 1k'ish AP, 12k HP, and anywhere from 6k to 10k mana. You hit and stay alive a lot longer then most. Shaman are awsome at healing while taking hits!
You'll be addicted after the first time. You meet a fury warrior face to face. And beat them with over 90% HP and 50% mp. LoL! Warriors will always just be group tools in WoW.
If your all about running raids as a Melee DPSer. Then I still would go with axes. I'd use the best I could get. I don't like daggers, due to the low numbers in DPS, CR, and AP compared to Axes. The speed plus raid buffs would only earn to unneeded threat and lower DPS. Also I don't need the haste procs. I have mongoose... /wink
Right now I use Planar Edge, and Grand Marshal axes. Average hit is for 500ish. While white crits proc around 1k to 2k. With rock biter and my own buffs. WF is good to, but I think PvE is more about constant DPS. Not a big hit every few hits. You want your buffs and crits procing non-stop. No delays!
In a raid group, you should be using DW. With out any doubt. The DPS is better, threat is better and Shamanistic Rage and flurry proc every few seconds. No chance of those buffs dieing with DW and decent gearz.
Two-handers are for PvP Stormstrikers. Your purpose is to gank. Any attackers below 60% or around 50%. Thats the best way to add to a good team, and bring foes down fast. You should be hitting for around 4k to 7k in 3 seconds. Thats how we are "Supposed" to Stormstrike. We are not stand alone plate wearing tanks. We are head-hunters dropping down on our targets, from the side. Bringing the fury of god.
I'm dragging on again.
I made the maces, after the axes. I use the axes for heavy hits. The maces for looks and boredom. My numbers are WAY better with my axes. I preform WAY better with the axes AP, and crit rate. PLUS, the all mighty Mongoose!