doubler, as a personal vocal mic there's no way to tell without you trying both mics and deciding for yourself. And then if a third mic entered the picture, you might fnd you like that one even better than the Shure or the Røde.
Could you give us a little more info? If you describe your voice and the style of music you're singing, I can make an educated recommendation. Might be one of those two mics - might be something different.
As a mic with the most uses over more applications, the Shure KSM32SL is going to win out over the Røde NTK. In general, in most cases, the Shure is going to be the "better overall" mic.
The Shure is a more neutral mic and is going to sound better and work better on more sources than the more colored and hyped Røde.