Performance wise, the AMD solutions simply cannot compete with Intel. The only thing that would make me consider AMD would be the price. And when it comes to laptops, that's about the only thing AMD has going for it.
When it comes to Laptops, there's just one company whose laptop I wouldn't even consider. The Sony Viao. These things suck. I'm sure someone will chime in with, "Had mine for a hundred years, works great, meets my needs....blah-blah-blah" but they suck.
HP has been impressive to me for the last three years. I'd seriously consider this model line
with a T7500 and the 256Mb 8600Go graphics. For $1500, you aren't going to get much in the way of extreme gaming performance, but this as a base line model is nothing to sneeze at for less than $1500. With the free upgrades HP is offering, pay attention during the component selection process, you can get one outfitted pretty decently in your price range.
As with all products, you'll find some people with horror stories and some with great things to say. I've owned an HP ZD8000 for the last couples of years and it still plays games quite well and the performance is still respectable.