Had perma lightform on my PB. Not worth it IMO. Lots of KB, poor AoE, compared to a WS. Teamed with AlienOne on his, mostly speed ITFs, WS>PB. EASY! I only kept mine because it had the first anniversary badge.
Im going to state this right here.. I never played a WS... game shut down before I got the chance..
However I need to speak up for the PB...
Now my PB was all human... and my WS would have been as well.. I didnt want to bother with the forms..
PB didnt have as much AoE compared to the WS.. very true..
However this was my final build on my PB before shutdown..
Perma Hasten
Perma Light Form which IMO is worth it for the capped resistance.. And it was changed so that it wouldnt almost kill you when it dropped...
Perma Essence Boost.. Thats basically Perma Dull Pain..
Perma Inner Light... 78% Damage boost for 10 seconds.. 28% for 30 seconds..
I also added the -KB Proc into Solar Flare so no KB just all KnockDOWN..
And still have a self heal as well.
Now what I did like about the PB is that I was self sufficient. I was not dependent on foes for healing.. damage buffs etc etc..
Now that being said.. I have a WS build on Mids and it looks to be pretty darn awesome as well..