best imo would be a high end fireclaw bear since it'll 1 hit most stuff and gets shockwave..
Jalas + ik parts and highlords , summon skillers and reapers might merc.
for pvm, bear all the way. You get the benefit of shockwave, which is simply amazing amazing amazing. Its that good it warrants mentioning 3X. Monsters become hindu cows, calmly standing there waiting for you to bash them in.
you also get ~500%ed phy damage added with bearform and maul swirlie going at the same time your using fireclaw. Thats 500%ed you miss out on with the wolf.
usually only pvp fireclaw builds sometimes use wolf-form for the extra ar on really high defense matchups.
botd Great Thresher and Etomb are the best pvm fireclaw weps for sure.
etomb (without bo, oak)
http://i167.photobucket.com/albums/u131/Master_Zappy/Screenshot008-1.jpg
botd GT

Fireclaw bear. 6fpa @ 2K-12K phy damage (+ 50% ds) + ~12K fireclaw means you'll one hit most hell monsters and take down end bosses at speeds normally reserved for other classes. One stick to rule them all.
Shockwave is also amazingness.
2K-12K phy = 7K avg phy + 50% ds brings that to 10,500 avg phy
12K fire damage or 22K avg fire damage w/ conviction on a base monster.
32,500+ average damage per hit not including cb
130K average dps with 4X attacks a second.
vs hell baal this would be 21,450 avg damage per hit.
comprised of 5250 (avg phy) + 16,200 (avg fire)
That makes it top tier melee.
A windy for example = 16.5K dps with nado+ hurricane. Just for perspective.
125 fcr 15K hammerdin only = 20.2K dps vs hell baal.
good thread here
http://forums.d2jsp.org/topic.php?t=57521264&f=87