Which one?

[W8taminute]

[GDS_Starfury]

rigged vote!!!   

[SirAndrewD]

By your command.

[W8taminute]

rigged vote!!!   

Haha!  What do you mean?  Seems fair to me, although I do have a secret choice.   

[JasonPratt]

All three look good, although I'm not sure I can vote for the Cylon wearing cargo pants.

Update: in the end I voted for the Fett, since his costume looked less likely to have been bought overall than the (admittedly very good) Burton Returns Batsuit.

[Sir Slash]

Bobba Fett could beat-up Batman but Batman's car could beat-up Bobba Fett.

[GDS_Starfury]

and Slave-1 would blow Batmans car to pieces.

[JasonPratt]

As long as Batman has the skills and preparation to survive, he innovates and comes back stronger with more preparation.

The beskar armor would be a major problem, but in hand-to-hand combat, Batman should come out the winner. (Heck if the Fett fights like the Mandos in the past three seasons, much moreso like Fett himself in his spin-off show, the fight might be over pretty quick!  )

I can even plot a few steps off the top of my head:

1.) Blind the mask;
2.) Fett removes the helmet to see;
3.) Win.

Someone should petition Death Battle about this.

[Sir Slash]

Naw. Batman would stop to discuss some soul-searching subject matter in a low, gravely voice and Fett would just shoot him. Miller Time. 

[JasonPratt]

First, that would be an internal monologue.

Second, in the comics, talking and especially thinking is usually a free action. 

https://tvtropes.org/pmwiki/pmwiki.php/Main/TalkingIsAFreeAction

[Sir Slash]

   I liked Sgt. Rock. He didn't think or talk, and his Thompson NEVER ran-out of ammo.