1) Senator claws ARE a life tap weapon that LT for up to1k and add jin
http://vanguard.xanadu-community.com/items.php?page=viewItem&id=268

2) We get a fabled weapon that adds lifetap/endurance/energy (to defensive target) when it procs  http://www.imagehosting.com/out.php/i1477509_vgclient2007123020270191.jpg


And the weapon your refering to is an  axe which has the best MAX hit but its minimum hit is way lower.  Look at the average hit (min+max/2) if you want to compare them.  Although our fabled fist does need to be uped in dmg and stats, it should be way better then that axe (aka 2-3 more dps, more dmg modifier etc)
http://vanguard.xanadu-community.com/items.php?page=viewItem&id=127

legendary knuckle  - - - Fabled Knuckle - - - Legendary axe
avg dmg         172 - - -                 180   - - -               222

For monks to get the same average dmg hit we would have to litterally add +60 dmg to minimum and maximum dmg hits on the legendary claw, and 50 on the fabled.

1) I know the fist weapons are faster
2) i know they are fixing auto attack so faster weapons and melee haste are "more valuable"
      *However people neglect that 90% of dps comes from skills and the top dmg weapon is the best one 99.9999% of the time.
3) Is 0.55 seconds slower really merit a weapon to be 50 more dps then a same teir weapon?  Even if auto attack and haste worked, wed just be hitting weak and fast.