Re: plz help me with 11 days trip to malaysia and thailand
I wouldn't call myself Ibn-e-Batuta - but here are my 2 cents:
First of all, it depends on what kind of a traveller you are - do you want to relax and go on a "take-it-easy vacation", or are you okay with a hectic - explore everywhere/see everything type of vacation?
I generally do the latter, in which case I'm okay with fewer days in some cities and I don't feel the need to spend 6-7 days exploring a single city - I get bored very quickly.
Also, I can only tell you about my own experiences and I only went to two of the four cities you listed: Bangkok and Kualu Lumpur. Instead of Phuket, I went to Chiangmai and instead of Langkawi, I went to Penang.
In terms of how long would you need in each city - it depends on what you want to do - I hit the major highlights in Bangkok and felt that two days was enough, but a third day would have been nicer.
In Bangkok - what are highlights and "must-dos":
Visits temples - there are a LOT of temples and people say that you get templed out after a while which I agree with, because after a while one Buddha statue starts to look like another. But the main temples are Wat Pho, Wat Arun, Wat Phra Kaew/Grand Palace,
Floating markets
Ice coffee (<-- this is a MUST HAVE) and street food - the banana pancakes/banana rote are to-die-for!!!!
There are plenty of other things to do - get a massage, go shopping, take a cooking class, eat at restaurants, visit Chinatown, or just walk around the city to places like Sukhumvit or Silom (the subway system and skytrains are super-convenient. I even hopped on to a local bus without getting lost, added to which you can take a tuk-tuk or a taxi).
Your trip is what you make of it. If you are a shopper - I personally found Thailand to be a LOT cheaper than Malaysia - so shop there.
Kuala Lumpur - I personally wasn't a fan of it. Yes, it is a Muslim nation, but as much as everyone kept telling us - all the food is halal, we had to be careful to ask about halal/zabihah at pretty much most restaurants. Added to which, I wasn't a huge fan of the local specialities of Nasi Goreng/Nasi Ayyam - it's just fried rice with chicken. The highlight is also supposed to be shopping, there are tons of malls an all of the designer brands you could possibly want, but I didn't travel to shop, so the malls didn't hold any interest for me. If you want to visit the Petronas Towers, book your tickets for the tour at least one of two days before you want to visit. They limit the number of daily visitors and tickets sell out early. Bukit Bintang is the one of the main areas to visit and Jalan Alor which is the food street is in this neighbourhood. You can also go to the Batu Caves (I didn't since I had gone cave exploring in another city right before arriving in Kualu Lumpur).
Four days should be enough in Kuala Lumpur IMO.
If you have any other questions, feel free to ask.