This is my opinion/experience on landscape and lens choice, a normal or short tele lens is the hardest lens to get a good landscape it does not give a wide enough angle to appreciate the view and it is not long enough generally to isolate a feature in the landscape. The normal lens is supposedly about the same perspective as our eyes, but the eye will pick up more detail in a scene and the normal lens leaves the user with the belief the user will get the same scene as from our eyes. Which is very rarely the case, so remember framing through the view finder is what you will get in the scene and have a idea of what you want to really capture i.e.; autumn colours or snow capped mountain.
Mid range tele are useful for compression of perspective and isolating a feature. Atmosphere/haze really effects tele lens so make sure your subject is clear and will not to be to badly effected by haze.
The only thing is I can never remember this things on lens and perspective when I have a camera in hand.