it depends on how you want to do it, i.e. budget mostly i suppose
a good budget would land you are prime areas where there would be crowd but also it depends on what kind of customer you are targeting (students, family, expats etc)

there's one arabic-fusion restaurant in ss15 subang jaya; the food is quite good albeit abit pricey but it has been a major hangout lepak spots for people/students in the area as they provide sisha.

so i think it is better for you to be clear on how do you want to strategise. just my 2cents