As a writer, I'd be all over Alpha Xi Delta's badge lol. I love so many of the NPC badges, that I have favourites out of all of the ones that allow variation.
Alpha Chi Omega - although the badges with 1, 2 or 3 diamonds I've seen pictures of are nice, I'd stick with the traditional all pearl badge.
Alpha Delta Pi - pearl with sapphire points. That configuration is one of my favourite badges of all. Observe:
Alpha Gamma Delta - I'd get the same as I wish I'd gotten with my Alpha Phi badge - pearl with a raised diamond.
Alpha Omicron Pi - I love jewels, but I have always loved the AOII badge that is a white gold Pi, a white gold Alpha and a chased yellow gold Omicron. LOVE IT. See? Gorg!
Alpha Phi - I still regret not getting the pearl with raised diamond (I got a single diamond). I also wish I'd gotten white gold, because I love it way more than yellow. My ultimate, dream, amazing badge is a white gold all diamond.
Alpha Sigma Alpha - I'm a big fan of the plain pearl.
Alpha Xi Delta - I would totally get the quill with pearls and a single diamond on the tip. Although the two blue stone version I saw in badge trends really sticks in my mind. I love the idea of using sorority colours in badges.
Delta Gamma - Another badge that I really love the plain, non-jeweled version. Maybe because the badge has a lot of intricate stuff with its shape, the rope etc.
Delta Zeta - I really love the flush set diamond. Not sure why, but it just looks awesome.
Gamma Phi Beta - probably one of the hardest choices, because they allow a lot of customization with stones. I've always liked just the Phi with stones though, and for some reason, even though I'm not a pink person, I'm really drawn to the one that has the entire phi with rose sapphires.
Kappa Alpha Theta - That onyx badge killed me dead. Now that I've seen a picture, it's the choice I would love most.
Kappa Delta - Would have to be pearl with emerald points. I think that one is gorgeous.
Kappa Kappa Gamma - I love alternating sapphires and pearls, and I've always been a fan of the enamel versions, because I really like the letters standing out.
Phi Mu - I would totally get pearls with rose sapphire points. Not the three in one point one though. For some reason I think they stand out better when there are fewer of them.
Phi Sigma Sigma - I prefer the badge with the three sapphires in each corner. I think because I see the sphinx shape much better on the triangle than alone.
Sigma Kappa - The scroll edge badge is my absolute favourite.
Sigma Sigma Sigma - Love the crown pearl.
Zeta Tau Alpha - Even though the ZTA badge reminds me of Phi Mu and ADPi in that it has a lot of stone options and stuff ... I'd stick with just plain pearl. I have no idea why lol.