I had a Z06 as well. Amazing performance. Complete monster. It's one of those cars that everyone should own. I'd bet that 95% of the people with super strong opinions (M3>Z06, etc) Never owned both.
Too many people trust youtube and the car mags a tad too much.
I am in the process of supercharging my M3. Going from the Z06 to the M5 and now the M3..I couldn't take ANOTHER downgrade in power