Crochet, always! I find it makes so much nicer amigurumis and small things. I crochet catnip toys for shelter cats, so crochet is what I use for that. Knitting is great for mitts and blankets and stuff, but crocheting is my thing!
Crochet feels more comfortable to me, so I like it more — but lately, I've been wanting to learn knitting. I dream of making garments I can wear someday.