I think you have to have a certain kind of body type and attitude to pull off black jeans. Black jeans should be stove pipe straight, worn tight on skinny legs. They look best on people with punk rock attitudes or people that have that innate rock star quality about them. Tucked into boots, worn with high-top converse, or flats...that's how I like to see 'em.
I like to wear mine out at night tucked into boots, but I've always had that rock-star thing about me, though...B)
black jeans - I think the only people that love 'em are the people that can wear them.