Investment in islamabad (2 to 3 years)

Asalamoalaikum.....

I have recently started following zammen.Com & turned out to be excellent portal for all.

I am an overseas pakistani... I am looking to invest in islamabad but literally very confused where to invest...
Please suggest whether is it worth investing in dha 5 (block a, b, c)??? As a mid term investment or investing in i-14 or g-16/3 or 4.

It will be highly appreciable to get the response and guidance from seniors & experts.

Best regards,