Choose the examining body which you like? If you think that you would be more comfortable with AEO then you should choose AEO because you would have a psychological advantage. On the other hand if you feel that you would be more comfortable with separate headphones for the listening part then you should do go for the IELTS offered by British council. As the far as the preparation for the IELTS exam is concerned I do not think that you should not think any other institute other than PACANS IELTS.
The best IELTS Preparation course is offered by PACANS. PACANS offers a very comprehensive course which helps you get your IELTS band score. PACANS has 4 branches in Lahore, and it is offering the whole IELTS course for free on the official website of PACANS. For IELTS preparation videos, material and tips log on to http://www.pacans.com You can also call 0300-4094094 or 042-35855791
PACANS- IELTS preparation call 0300-4094094 or 042-35855791 or log on to http://www.pacans.com