Note that though a bigger screen size is more desirable & impressive, it'll be harder to lug around on holiday.
If you need the better spec, extra bits & better portability that come with the Medion, & don't mind paying the premium, then go for that.
If you go for one of the Compaqs or Toshiba from Dixons, get £10 off using the code SAVE10 at checkout, & a further 3% cashback click here. But check other sites too as you may get a better overall price including cashback.
Just checked out a Dell 1720 laptop click here (5% cashback click here). The original things it offers is that you can configure it to your liking & budget, & select a non-standard case colour for £30 extra. G
P.S. It would be very helpful if you could post links to the laptops you're interested in to make it easier for people to compare & give you an answer, ta.