I was thinking of potentially pairing either of these lenses with a Canon 24-70mm f/4 L IS lens. Naturally I'd be tempted to go with the 70-200mm lens. It's relatively light (owned one a few years ago). The 70-300mm lens is heavier, but it have a greater reach. Let's take cost out of the equation. If you guys were to go on a 1-2 month trip, which lens will you go with? How often is 200-300mm is used for landscape and travel photography? I wouldn't mind the extra reach, but the weight is more of a concern to me than cost. Opinions?