They're all about the same if you're buying a ready-made one, Dell, HP, both "fine" choices.

I mean the best way would be to build your own rig but it's probably too much hassle if you've never done it before and don't have much interest.

Also the graphics on that suck as it's integrated with the motherboard and not a separate component. But as long as you're not playing graphic intensive games it should be ok.

The 8GB of ram is extremely overkill, 2GB is fine for any modern rig. The Quad-core processor is also probably over the top, but hey for $600 that's all a pretty cheap setup.