I think we left out some pros for the WB
like no moving parts, springs, strings, not to mention timing issues and so on etc. and for me personally , some drop-aways seem to have an audible click. Plus i just don't like pulling the arrow back from the unlevel position a drop away requires. Just turn the knob you say to set the arrow in position?
Naa not for me, I can poke an arrow through the WB with my eyes closed and be on the string in a glance then shoot it upside down if I want to.
speed? it's been documented 2-3fps avg loss standard fletch, 0-2 with blazers.
Accuracy....... well here's a video some of you may have seen.
http://www.youtube.com/watch?v=bVbm7y6S5OM

So which is better??? The one you prefer of course