Should I get the Bose AE2 Or the Bose QC 15?

Bose�AE2 audio headphones is the best headphone company of marketing. I got Bose AE2 because the fame of its brand. I had a Sennheiser HD202 many years ago. Compare to the value of HD202, AE2 should not worth more than $50, even it's very comfortable to wear.