Could you provide some links to the machines in question?
I managed to find the ASUS on a Portuguese Mediamarkt site, priced at €899 - same as the Lenovo from PCDIGA - and they do seem very similar in terms of specs. They both come with TN panels, but Lenovo's TN panels are very poor quality. The ASUS uses a 3-cell battery where the Lenovo makes do with a 2-cell unit.
Simply based on the limited data available now, I would recommend the ASUS - most likely a better screen and very likely better battery life.