I like SSDs more than HDDs
However, I think that the question should be what is better for you
. The CPUs are fairly similar, the memory is fairly similar, the screens seem similar enough, the graphics seem similar enough, and the hard drives aren't too far off, excluding the SSD.
As was said above, buying the larger screen model and getting an SSD for it is probably the best way to go. I'd recommend a Samsung 830 in a laptop. I recommend Vertex 4 for desktops, but the 830s use less power and seem to have better laptop compatibility and that offsets the minor performance loss IMO.