Hi there, 

That's quite an open question :)

All the points mentioned below are fair. What I'd add is that the office itself is very attractive for consultants due to the high remuneration and no taxes. I know several consultants who transferred from European offices to Dubai just for that. The silver lining of that is that the office ends up being diverse, so it's a cool community to be part of. 

Best,

Cristian

They differ in a vew ways 
1. Type of clients 
- In terms of type of clients, a lot of them to public sector work however, some tend to win more business than others in the Middle East. Check out the case studies and the industry focus of the partners on the local office pages, that will give you a good proxy as well. 
2. Size of firm 
- Bain probably has the smallest comparative presence. Bcg has become one of the most prominent and S& also has a huge ME presence 
3. Culture of firm 
- The cultures of the firms are also different like any place 
4. Salaries/ perks 
- The salaries and the perks offered do marginally differ from firm to firm. 

they differ as in the rest of the world: size, clients, type of the case, positioning, salaries, etc. Better you explain what you look for specifically to get more specific answer.