Color Club Revvvolution vrs. Color Fever Black Diamond

Hi!
Yesterday I promised a comparison between Revvvolution and Black diamond. 
You can see how different they look in the bottles in shade
Revvvolution looks a lot more lighter grey shade than black diamond

 another picture of the nails in shade, here you can see, that Revvvolution is much darker on nails than it is in the bottle. Revvvolution looks almost black here, while BD is still dark grey as in the bottle.

And now, to the pictures on sun and the holographic effect.
 I have to warn you, that it wasn't the best day for a holographic nail polish comparison, because the sun wasn't shining at it's best so the holographic effect isn't as visible as it should be. But still we can see how different the holo effect is. BD has more scattered holo which is also weaker and Revvvolution has more rainbow looking holo, also the holographic glitter isn't the same. Revvvolution has more orange and BD has more blue glitter in it. I hope you'll be able to see that on the next 2 pictures

sorry for such a big photo, but I just had to enlarge it *blush*

I know that this is not the best comparison, but I think that it is clear that this 2 polishes aren't even close to being dupes, and I'm glad I have both of them , especially beacuse I'm a holo fan =).

What do you think about this 2, which one do you like more? Do you think you need both?