Kingsley, and two more people I can't remember dueled Voldy at once and were unable to best him. Now along with Barty Jr, who is a maniac, that is very dangerous, who could beat them? Tonks and Moody are cool, they fight death eaters, they're aurors. But this is YOU KNOW WHO.

^Yes it was Slughorn and Mcgonagall along with Kingsley who were fighting Voldemort. This will be an easy win. In fact I believe Moody and Tonks should not have beaten Dolohov and Yaxley in the last round. I did give canon evidence as to why Moody and Tonks will lose but people base their choices on the team that they liked the most as to actual evidence.
-_-

They wouldn't even know what hit them

The Dark Lord is the most powerful wizard alive!!