Day 10- fave fiber or yarn

Well I tend to knit most things in acrylic yatns as its usually a toy or a small gift for one of my cousins. So Hayfeild bonus DK or anything like that is good, if im feeling more adventourous (spelling??) Then I really like the feel of the Sirdar Peru that I am using for my cardigan although I am lead to believe that it is now discontinued. (Links to come)