Acer Aspire AX3950-U2042 vs Gateway DX4831-01U

Gateway-
Processor: i3 530 (2.93 GHz)
Memory: 6.0 Gb DDR3 1333 RAM
HD: 1TB SATA
Graphics: Intel GMA
$559.99 with Free 6-Month Anti-Virus software
http://www.tigerdirect.com/applications/searchtools/ite...

Acer-
Processor: i3 540 (3.06 GHz)
Memory: 6.0 Gb DDR3 1333 RAM
HD: 1TB SATA
Graphics: Intel GMA
$584.99
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I would like either one of these computers (or a better one within the same price range) for my father, mostly just to use for minor video watching, e-mailing, and word processing. Now although the differences are only marginal, which would be the preferred choice? Is there a particular brand, or website, that is superior?