If a game asks to put in your name, what do you usually put in?

[The Riddler]

Noones willing to say their real name?

Pussies.

I use Rob for almost everything.

All the other characters I name my friends.

[Zovistograt]

Noones willing to say their real name?

Pussies.

I use Rob for almost everything.

All the other characters I name my friends.

uhh

Terence
Terrence
Terry, for boys name.
Terri, or Sakura, for girls names.

Usually just Aaron.

I usually put my name (Quincy) in.

My favorite, old nickname: B Man, B-Man, or BMan. I used to put Brandon but it got old...

[SkyMyl]

Noones willing to say their real name?

I'm waiting for someone to guess mine.

[…]

I'll use the characters name if he already has one and my own name if he doesn't.

[Nayrman]

Oh, also I'll also sometimes give everyone joke names if I'm doing a bullpoop playthrough.
Rival in Pokemon: Bastard, Deuche, Asshole, Dumbass, etc.
Random pokemon of mine: various inappropriate words, internet memes, and jokes involving their attacks (butts used gust!)
Not to mention some final fantasy stuff depending on physical appearance usually (FF7: Cloud = angster, Tifa = fanservice, Vincent = Blasty McGunshoot)