For MY voice, the SP C1 gives me great presence and clarity in the mix. For the female singer in my band, it sounded thin. So I went to Mars and tried out their mic selection for a "warmer and smoother" sound for the female singer and I will be buying
the AKG C4000B. If I had the money, I may have bought the AKG 414B-ULS or Neumann TLM103. I also tried the KSM32, KSM44,
AT4040, AT3030, AKG C2000, MXL V93, MXL V63. I wish they had the AT 4033 to try but they didn't.
Mind you, I'm not a pro and I just spoke into them and sang a little. I was lucky enough to find a woman who was also checking out mics and she sang into a couple I was interested in. In a moment of brilliance

, Mars moved their mic station from a little room on the side to an open space in the middle of the store. WTF were they thinking? It was cool trying out some omnis though - felt like I was spying since I could hear conversations from a distance I wouldn't normally hear.
But as everyone said, if you can, you should go and check it out yourself - you'll be happier in the long run. If you can, buy from somewhere (online?) that you can return it if you don't like it. It sucks, I know, but there is no easy answer.