Well they probley could have fought intill one of them were tired then the other could finish them off.Shouldint water beat fire every time?cause the water would put out the fire.

And the issue of terrian was more equalising than anything else. If it was in a dojo or something like that, I would say that Zuko would win??purely for the fact that to bend he doesn't need to have a ready supply of his element. That's the flaw of water benders, out of all benders they are most likly to be isolated from their element.

Also I think Zuko would win just cause at that time Zuko wasn't so reluctant to hurt people inorder to acheive his goal.

Zhao is more a ambitious military leader than an actual fighter, granted he is probably better than the average fire nation grunts.

Zuko was able to take him down in the begining of the series, and while Zhao was focused on advancing his military and political standings Zuko was improving his combat skills...makes sense he would take out Zhao with little trouble

the only way to tell is if they were on mutual terrain and there were no outside circunstances. also the time in the series. if it was back in the day when zuko used firebending freely it would have been a cooler fight. but i like the 'lee' version of zuko better thatn the original and if he were to fight with his swords it would be tight. but the best would be if katara had like a staff or something plus waterbending and zuko had his swords plus firebending... can you say F*CKIN AMAZING!?!