KL is an excellent intro to SE
Asia and a very easy place to find your feet. English is widely spoken and local transport is efficient - but watch out for cowboy taxi drivers who have meters but flatly refuse to use them. Do the view from Menara KL
, go shopping in Suria KLCC (base of Petronas twin towers), and eat at one of the excellent Mamak restaurants in town. For the adventurous try the Batu Caves or Kampung Kuantan firefly park outside of the city.
is shop till you drop and always a bit crowded for my liking but a trip up to the Peak in the tram is a must. Go early and beat the crowds. A very expensive place to stay. If you want a more relaxed vibe Macau is a short ferry hop (or a very expensive helicopter ride) away.
Guangzhou is, in my opinion, about as convivial as Chernobyl on a wet Tuesday in November. Lived there for 9 months and was glad to escape.