The Sheryl Crow guitar is actually a C & W but when it comes down to it the guitar is pretty much a Hummingbird without the bling. As a J-200 and a Hummingbird are two very different sounding and feeling guitars, I would think the decision would be easy. If you are not sure and sitting on the fence about which way to go, I would wait until you knew.
I have to agree on the J-200. They are an amazing guitar especially the older ones which go back to when Gibson only made 100 or so a year. The guitar that has been with me the longest is a 1960 J-200. You will not find a guitar that is better built or with such care as to have ear tuned tops and bracing. But they all, no matter when built, have a voice which is very different from the round shoulder jumbos. Just not everyone's cup of tea.