The shell is cast on the C1 and turned on the V67G, so the C1 is heavier. Sonically, the V67 is slightly smoother than the C1, but it's really a matter of degrees. Neither one sucks and both will do a good job for most vocals, with the C1 having a slight midrange dip.
The V67G probably wins the "best bang for the buck" award at around a street price of $185, but the C1 wins the "most impressive looking" award even with a street price of $200 to $230.