Pretty sure this hasn't been done.

[Gama]

Who wins Master Chief vs. a Predator from the movie that just came out.

Each is allowed all their weapons minus vehicles.

No knowledge of the others abilities.

[zebrakiller]

predators have nigh unlimited cloaking. thats way more dangerous than an elite. and if chief doesnt know this, he's a sitting duck...

[Gama]

chief has camo as well just not as lasting

[Realninja 2.0]

Predator puts its bomb on a timer and runs away. Master chief dies in massive explosion.

[Akatsuki X]

This has been done before actually.
Predator wins with autotracking laser.

Also camo and elctrospears give him an edge.

If all else fails, mega-bomb o' doom.

Predator wins.