I am a pure wolves player and this is my 2 cents:
1.Grey hunters are better now with chapter approved cause they get objective secure and are 1 point cheaper, also you unlock the battalion (more
CPs are always better, always!!!)
2. Always give Bjorn the twin las cannon, its the best load out
3.I would take Njal in termie armour any day over any psycher we got, cause he is great for his new points (153 pts)
4. Give those long fangs all lascannons in order to get the most out of them.
Now in 1500 points battalion with bjorn i tend to use 2 squads of longfangs instead of one and a stormwolf, and also i prefer wulfen as a pressure unit deployed with the new stratagem
Here is my 2 (1500pts) lists
Every list has the same core
3x5 Grey hunters (1xplasma each squad)
2xrazorbacks (twin assault cannon)
5xlongfangs (4xlascannon)
Njal in termie armour
5xwulfen (4xhammer/shield, 1xclaws leader)
The rest is either bjorn with twin las and another 5 man longfang squad with las cannons + some spare points for upgrades
OR
Logan grimnar and a stormwolf
Thats all i had to say
Cheers and good luck