I tend to knit more than crochet but I really shouldn't because knitting aggravates my carpal tunnel problem. This is far more pronounced in my left hand and wrist, so crochet is much the better option for me. I do so prefer knitting, though, for little garments 
My GP said I should get a splint support for my wrist, but I said, 'I won't be able to knit with that on'. We both laughed because I'd already admitted that it was knitting that brought it on. So I just live with it, shake my hand out every couple of rows.