I just so happened to stumble upon your guide in the vast and wondrous interwebs, and I'd like to say it is really well written! Informative, helpful, and light-hearted. /em Clap
I'm not a huge fan of Triform Peacebringer simply because I feel Human Form can do everything a Dwarf/Nova (nova is debatable, considering the AoE damage capabilities that Human Form slightly lacks) can. Light Form now provides Mez Protection and, if Perma'd, Dwarf becomes just a cool costume to wear whenever you feel like becoming a glowy lobster.
I feel Warshades fit the Triform aspect far more simply because the synergy between the shapeshifting; everything has a purpose. Human/Dwarf provides fuel, Nova provides massive dps, Human provides utility.
White Dwarf just feels meaningless compared to Black Dwarf. But this is all just my opinion, of course. I've seen very capable Triform Peacebringers that can bring some unique and powerful assets to teams.
Again, great guide! Very well-written. I might have to give Triform another try sometime soon. 
Templar of Truth Level 50+++ Triform Peacebringer - Server Freedom
Templar of Judgement Level 50+++ Triform Warshade - Server Freedom
Gaze into the Abyss... OR ...Walk in the LightTemplar of Judgement Level 50+++ Triform Warshade - Server Freedom
And you thought eight Kheldians were awesome...
Haha, thanks for your comments. Glad you enjoyed the guide. Always happy to make someone reconsider PBs. Hope to see ya out there TriFormin' it up 
Wanna play a Peacebringer? Don't believe the hype. Check out my guide and get the real truth:
PEACEBRINGERS SUCK!!! (Now fully up to date for i21+
)
Just updated the guide for i21. Made some changes to the main body itself and the Suggested IOs appendix. Give it a once over and let me know what you think. Your feedback and questions are always welcome
Wanna play a Peacebringer? Don't believe the hype. Check out my guide and get the real truth:
PEACEBRINGERS SUCK!!! (Now fully up to date for i21+