I agree with GenesisD, Cowboy did hit the nail on the head. But if you're having trouble thinking like a Wolf (do the other Codex Marines have you too indoctrinated?) Try thinking of Wolf Guard Terminators as being similar to Vanguard Veteran Squads.
My mate loves his Vanguard... and he especially loves to pump them up to an excess of 650 some points, with a full compliment of Storm Shields, Power Claws, and Thunder Hammers. This is wrong.. wrong wrong wrong! What he fails to realize, and what you should avoid, is that their basic load out is effective enough (or in the case of WGT, very effective!) Take advantage of their supreme customization, and do not try to load them out like a horde of identical Tactical Marines.
With a pack of 5x WGT, you have the opportunity to make each model unique, allowing you a lot of power when deciding how to allocate wounds. Here are some options to consider:
1) Heavy Weapons -- If you're loading them up in a Land Raider, you'll want a Heavy Flamer. Simple as that. They're awesomely destructive, even against MEQ, with an auto-hit and 3+ to wound, they'll easily stack up armour saves. More importantly, they're almost guaranteed to take out 5+ models in a horde.
Aside: If you're equiping your HW WGT with an Assault Cannon or CML to be assigned as a Pack Leader, consider attaching him to a footslogging GH pack instead. Long Fangs are too easy to break, and you're not helping them any by adding more shots -- they have enough as is. Conversely, by adding him to Grey Hunters, you're allowing yourself the opportunity to fire at a third target if need be.. with Long Fangs, you could still only fire at two targets.
2) Storm Shield -- 3++ saves are sexy. But don't go the way of my friend and buy one for every model. One is sufficient enough. You only want to be able to allocate those melta/plasma/power_/etc.. wounds to someone who's more likely to survive.
3) Anti-tank -- Melta Bombs are the cheapest way to differentiate models for wound allocation. If you have two vanilla WGT left over, give one of them Melta Bombs. They're cheap, and always worth having one or two around.
In place of a Power Fist, I'm a fan of Chain Fists. They're only +5 points more, and allow your Termie to attack like a MC. Not necessary, but it doubles the psychological effect, as well as pretty much guarantee every hit will penetrate.
4) Special Combat Weapons -- This is pretty much the only time I would consider taking Wolf Claws. I am a bit turned off by their price increase, for little added benefit, especially since I like having them in pairs for the +1A. WGT get them for dirt cheap, and they're already missing out on the +1A due to the Storm Bolter. Re-rolling failed to-hits is great if you get stuck in with an uber-CC character, and re-rolling to-wounds is great to stack up more MEQ wounds.
5) As Cowboy stated, you can include Power Armoured WG with your WGT! Epic. Keep the extra WG vanilla, or maybe one Combi-(). It is good to have a few models in a unit without unique wound allocation.
Here's my favorite load out:
Wolf Guard [ 615 ]
+5x Wolf Guard Terminators [ 215 ]
...+1x Power Sword, Storm Bolter, Melta-bombs
...+1x Wolf Claw, Storm Bolter, Melta-bombs
...+1x Chainfist, Storm Bolter
...+1x Power Sword, Heavy Flamer
...+1x Power Sword, Storm Shield
+4x Wolf Guard
...+3x Bolt Pistol, Close Combat Weapon
...+1x Combi-Plasma, Close Combat Weapon
+1x Wolf Guard Terminator Pack Leader
...+1x Power Sword, Storm Bolter, Cyclone Missile Launcher
+Land Raider Crusader
...+Multi-Melta
This is a super versatile unit, of which the Terminators are only a scarce few points more than SM Termies, and IMO much deadlier! I especially like the load out because the 5 WGT + 4 WG occupy 14 spaces inside the LRC. Guess what! That's exactly enough room to include an HQ-Terminator (*coughNjalcough*)
:beer:
EDIT: Also note.. the LRC is my absolute favorite Land Raider variant. The Hurricane Bolters are defensive weapons, which means that while moving at Combat Speed, you can fire all of your weapons at Infantry, and POTMS can fire the Multi-melta at Armour. Just wanted to throw that out there, not that everybody doesn't already know.
