If you get the transport, I'd probably say....
Well, if its cloudy you might as well go round to the far side of the airfield. I don't know how to get there but there is a spot on the far side of 24L right next to the point of rotation for most heavies, which would be a good idea, but where it is I do not know
Otherwise, if its sunny i'd say probably, either the aviation viewing park (there are signs as you come out of the airport, otherwise easiest way to find it is keep turning left
), or if you are feeling like a community bloke, go to the pub which is under the approach path for 24R (although, when I went there I didn't like it because there were alot of people there, and not alot of them seemed 'nice', and there were loads of kids and loud music etc).
Its your choice!! I'd say that you can't be very creative (at least not Andrew Hunt creative
) from all 3 spots, as the best places are on the other side of the airfield, however you might have some luck at the aviation viewing park (with transport) or Terminal 3 car park (without transport).