Signature Chips

DashAttack, and Condor!

The Elem chip Series, any terrain changing chip and Area Grab.

any kind of gun chips will suit Validus.

Shotguns: Close Quarters
Cannons/Markcannons: Sniping
Magnum: Badass imbued on normbust

I don't know yet. I'm still trying to figure out what SINNBAD is. I guess if I could find a rare KnightSword it would be pretty cool.

I laughed so hard I woke my roommate, Aim.

Anyways, I'd have to say my pick of the chips would be Elecknife, Elecsword, Elecblade, Trainarrow series (It makes your buster fire spears. Eh? Eh??), and of course, Areagrab and Fighter Sword.

Bombs, bombs, and more bombs. In particular I've found Magbomb to be useful, stunning a whole bunch of enemies at once is always fun.

Stepsword

and StepCross too if I ever get my hands on one

WideShot and WaterLine for SplashMan, TrainArrow and AquaDragon for SplashLady.

I know, WideShot one of my Navi's signature chips? I was shocked, too.

...And I would like to apologize to anyone that drowned on that sarcasm soaked comment.

Swords. Lots and lots of swords for Rhea.

Runeknight - BigHammer, FireSword and FlameLine

Wolfman - RageClaw?

Chaos - Also RageClaw?