score:2
I'm assuming that the one hour is to spent in the city. I would go for the KL Tower instead of the Petronas Towers. The restaurant on the top of KL Tower takes approximately an hour to revolve and you will see more than just the Petronas Towers. Plus a nice Malaysian buffet.
The problem with this is that the taxi ride to / from KL Tower will increase the time over an hour.
So instead maybe head to KLCC, look at the Petronas Towers and then head to KLCC Park where there are views of other buildings. Then if you have time, go to the food court in KLCC and grab some Teh tarik (sweet tea) and Nasi Lemak.
Upvote:8
Usually questions like these get closed as subjective, but in KL's case I think there's a pretty objective answer: The Petronas Towers!
(courtesy me)
Especially at night...
(courtesy Someformofhuman, Wikimedia Commons)
Sure, there are taller skyscrapers these days, but (IMHO) few are prettier, and nothing else in KL that you can cover in an hour comes close. Easy to get to as well, hop on the KLIA Expres to Sentral and then take the LRT to KLCC.