The first one linked is a little out of date, check the last few pages of comments for extra info. The main differences I can see are, Chucks build uses Elfin Weapons and Wildfire. Fumbles recommends acid fiends. And some gear variations.
I'm playing Fumbles build, it works really well and i'm not having issues with early charm farming. Probably about 10 charms in and farming K3K with no problems (although thorn strike targeting on the totems seems odd, like it doesn't piece invulnerable skeletons in front of you). Azomodan's heart was by far the hardest yet, although i got the strategy down eventually. summon minions, kite invisible enemies, spam thorns, run and heal, repeat