I think cotton is my favourite. as simple and seemingly common as it is, a stiff cotton broadcloth can be molded to be very sculptural and beautiful. a soft gauzy cotton muslin can be floaty and ethereal. I also love they way they feel.
I also adore the softer fabrics, such as cashmere, for everyday. cashmere is like chocolate - it contributes to my feeling of well being. I also adore it when men when cashmere...very huggable.
I am a self professed 'fabric-petter' - i.e. I walk about fabric stores touching all the fabric I pass because I am fascinated by the variation of textures and fibres used. I'm definitely a stickler for natural fibres - I hate man-made fibres and am not comfortable at all wearing them.