best answer I love those three

@heckaboo  

 
You could have both, you know.

No doubt that I will choose Gilda.
 
Come at me, you LD apologists!

i chose both.  
And also Suri.

Damn, don’t make me do this… I’m bad at choosing DX

Gilda. I doubt she’d be pleasant company, but Lightning Dust is a danger to everyone around her.

Depends on why I’d be picking them, but probably Lightning Dust.

Lightning Dust ftw

Gilda. She’ll eventually leave me alone after I don’t hold up to her arbitrary standards of “coolness”, but at least she won’t almost get my friends killed.

@Background Pony
 
I’ve had this thing pinging around in my head:
 
Element of Loyalty.
 
Severs ties with one of her oldest friends when she becomes inconvenient.

Gilda.  
Gilda’s defining moment is Dash refusing her friendship (and being RIGHT to), which that could potentially be a very interesting thing to explore given the themes of the show.

Is that a real question? Gilda.

Gilda

Awesome pegasus ofc.

I have to choose?  
But what if I want both?

LD all day.

Lightning Dust of course.

Gilda.
 
There is only room for one obviously negative foil for Rainbow Dash, and I’d rather a more interesting character design.

@Blackie  
Keep yo grimy blackie paws off mah white backpones negro!

Dust is just Dash 2.0 for me.  
Gilda.

Why not both? :)

The Griffon.

I have to choose?  
Shit.

Gilda, for a number of reasons. While she was acting bitchy half the time, she was only doing so because she was clingy, she was afraid the other ponies were going to take Dash away from her, much like Pinkie she seems to have abandonment issues. After all, she only started acting like a bitch when Pinkie kept shoving herself between them, at that point she was just in a bad mood, because of that I can’t bring myself to be too angry at her.

Gilda