Nine times out of ten, we’d recommend a good pair of in-canal earphones over active noise-cancelling headphones if you’re looking to block out ambient sounds while you’re listening to your iPod. But some users prefer earcup-style headphones, and though Bose’s $299 QuietComfort 2s have dominated the noise-cancelling category for years, Audio-Technica now has a superior option: the ATH-ANC7 ($220, street price $115-130). Competing…