If you want the best bang for your buck on a video card, always go ATI. There are a few exceptions in certain areas, though in the 120-140$ price rage the GTX 650 is the cheapest 2gb video card at the moment.
Also note when buying cards at this point in time, 1gb vram is beginning to become quite low; and 1gb might not last you very long before you need to upgrade.
If you are looking to get a good year or two on a card, I would suggest investing into a 2gb card.