1- Welcome to the forums.
2- GTX 560Ti is beating each card you listed in performance.
3- No need for the 2 GB version unless you're running above 1080P resolution.
4- Most of the reputable brands are MSI, EVGA, Gigabyte, MSI, Asus & finally Zotac, never heard of Point of View before.
Most purchases here are leaning towards the MSI Twin Frozer II or the Evga, but since the MSI Twin Frozer has better cooling, i would recommend it http://www.newegg.com/Product/Product.aspx?Item=N82E16814127594