The Rode NTK is very flattering. Very smooth and sheeny in the high end -- sometimes a little sibilant on the right (wrong?) singer. Plenty of proximity effect. Nice tube sound. A very flattering, colorful mic.
The ksm32 is just the opposite. All-around, I think it's a better quality mic, but it is very neutral. You won't hear any flattering response curves . . . boosted high-end, scooped mids or anything like that going on at all. It just takes what's in front of it, and reproduces it with outstanding clarity and realism.
Both very good mics for the price . . . but very different. The question is do you want something to flatter your voice, or do you just want something that makes it sound the way it sounds, naturally. Most people like something flattering (NTK) for vox, but you never know.