Sigurd's Descendants: The Art Of Dragon Slaying.

honestly it depends on what you're using/considering current TP sets.

In my DT set I mix nyame B and gleti. Replacing nyame B has big gains in DPS but replacing gleti's nets you gains in meva. I am working on alternating to balance dps and meva.

DRG has pretty bad itemization for balancing dps/meva/pet stats but the clemency set finally gives a decent balance.

Sim basically has flamma head + 4/5 clemency with only diarmuid + utu grip locked. Require PDT-50, MDT-50 and remove hjarr/flama/sulevia/carmine/vim and you get 5/5 clemency

That means they're all good pieces, but I would balance whatever I'm replacing (DPS or meva) and probably score the head/hands lower since gleti's gauntlets are highly valuable for petDT set and head has lower QA/competes with flamma in nonDT sets. Body has pet DT, feet have wyvern lvl+1, legs have wyvern regen+, not sure if swapping head would lose wyvern HP+ during WS or if it happens before the server checks.

My priority order is like:
body > feet > legs > hands/head