Which earphones are better?

I’m in need of new earphones, and I’m stuck between 2 pairs.
A little bit of help from the public would be great, as I need to decide before this Friday.

iPod 2nd gen. earphones

http://store.apple.com/ca/product/MA662G/B?fnode=home/shop_ipod/ipod_accessories/headphones&mco=MTU4MDk

Or these nice Panasonic Cancelling Noise Ear Plugs.

http://www.staples.ca/ENG/Catalog/cat_sku.asp?CatIds=&webid=723214&affixedcode=WW