I am currently updating my laptop (previous HP Pavilion DV6) and have been looking at ProBooks, being 4520s, 5320b and 6560b. They are all not too far from each other in price, however in doing some research on the internet there seems to some issues with each of them. Can someone help unravel the mystery?

4520s - poor battery life and difficult to use the integrated mouse, poor battery life
5320m - discontinued model?
6560b - poor screen resolution and graphics.

I have also been looking at Lenova and they seem to have some good models.

I guess the issue is there are too many laptops to choose from and obvious particular outlets will promote their stock as being the best.

I travel a lot so portability is essential as is battery life, but it must be perform well so looking i7 processor and 4Gb Ram.

Cheers