What is your "signature" outfit? What armor do you usually wear, and what weapons, nanos, and vehicles do you use?  
Here's mine, I guess as an example:


Armor: Generator Rex Racing Team Jacket, KND Denims, Bauhaus Boots, Ski Cap, Scouter Lens, and Rudy Blowfish Backpack. 
Weapons: Samurai Katana and Cloaked Quad-barrel Shattergun.
Vehicle: Absolution Hoverboard
Nanos: Megas (sneak), Finn (jump), Van Kleiss (Heal)


Also, this is completely unrelated, but I just saw Ty Aquazon and Eva Beta in game at Mandark's Ship! 

Armor: The shirt from the Leopard set.  CannonBolt leggings. CannonBolt Shoes. Steam gun (Mixed)

Nanos: Aku(Cone/Area Attack), Eduardo (Drain)/ Coco (Stun), Blossom (Antidote)/Numbuh 1(Heal)

Armor: Dexter Glasses, Ben 10 Jacket, Cryptid Batpack (Occasionally), Jeans, Finn Shoes.

Weapons: Pink Guitar, Fusebreaker Hurricane, SACT Wrist Rockets, Mah bare fists!

Vehicle: Usually random. Currently Kimchi Cloud.

Nanos: Dexter (Rocket), Buttercup (Stun), Humongousaur (Damage)

Hat: Solomon's Hat
Glasses: Red Pirate Bandana
Shirt: Fireteam Shirt
Pants: Fireteam Pants
Shoes: Fireteam Boots
Back: The cape from the Peach Creek Commons EGGER (Dark Cloak?)
Vehicle: Aku Glider (whenever I need one)
Weapons: Modded Galvanized Gun, Couture (Red) Rifle
Nanos: Numbah Two (Run)/Demongo (Attack-Area), Numbah One (Heal), Fourarms (Leech)

I have a few favourite combinations but one of them is:

Glasses: Action Blindfold
Shirt: Ben 10 Tee or Ben 10 jacket or that red jacket (future) or that white and blue hoodie, etc.
Pants: those blue jeans, or those future trousers.
Shoes: the one that looks like Ben 10's shoes in game.
Back: angel wings or sometimes without.
Vehicle: Grim board or Megas XLR car.
Weapons: SACT rifle maybe. Or no weapon at all. Or red Couture Rifle. Or Bad Max Concussor. Or something.
Nanos: any really although I quite like Numbuh two and others that are funnt when they dance. 

Hat: Sometimes any coloured Eagle Headdress or nothing.
Glasses: Blindfold
Outfit: Pretty much the Super slayer set.
Weapons: SACT Rifle thats it.
Nanos: Juniper Lee: Jump, Hex: Run, Prof Utonium: Rocket 
Vehicle: Fastest one the shop is selling.