Wow, quick replies from you guys.. thank you all for your feedback. I really appreciate it. Lance, thank you for posting the photos, very excellent example of landscapes. I love it. My friend told me, that if I am not sure, just get the wider lens ie. 24mm. However, the 24mm is still a 24mm perspective even though I make a few steps forward.

It is a very difficult decision to make, as I photograph both people and landscape. Both lens works well for landscape photography, with 24mm giving more advantage. For photographing people, 35mm renders (group shots, meetings or events) without any distortion which is what I like. With 24mm, I have to avoid placing them at the edge of the frame.

ok.. I will have to re-think again... can't afford both.