The most badass voice

[Barbarossa]

Madara has the most badass voice in the series.

After him is Kakuzu in my oppinion

 

[Bantos]

Tsunade has the best voice.

 

[Natsu Shazneel]

I like Kiba's English voice.

 

[NineSNS]

Madara's voice is perfect for his character: low, deliberate, downright intimidating.

 

[Spiral Obito]

Madara
Pain
Kakashi

 

[AMIan]

Madara.
His voice was intimidating and supreme. Pain's voice was calm and bored IMO.

 

[Eternal Sage]

Madara sounds epic when he doesn't sound impressed. Deva Path is pretty intense, though