Mac brushes VS Sigma brushes?

Many people compare the Sigma brushes to mac brushes as in the beginning the numbering on the Sigma brushes were the same as the Mac brushes .
The numbering on the Sigma brushes have now changed to their own unique numbers:









In my opinion and experience some of the Sigma brushes are comparable than Mac and some are even better than Mac . The Sigma brushes are slightly heavier than the Mac brushes. If you are someone who wants good quality brushes but with the cheaper price you should go for the Sigma brushes. A 12 piece Sigma brush set is cheaper than buying 12 Mac brushes because as we all know Mac had not yet come out with a full size full brush set but they do come out with travel size brush kits with different collections.
I own a 12 piece Sigma Make up Blush Kit and i am still using all the brushes in my daily make up routine after 7 months. Another good thing about Sigma brushes is that with the brush kit i got a cleaning instruction card and it informed me how to care for my Sigma brushes to keep them in good condition.I personally would choose Sigma Brushes over Mac Brushes because of the price and because the quality is comparable to Mac without the price.