I think you have narrowed your choices down to two places where you are highly likely to have a good meal. If I were restricted to choosing between the two, I would probably select Semiramis. My choice is based on a variety of factors including food, the interesting neighborhood, BYOB, and the fact that I really like the owners.
Personally, I'm always a bit perplexed by the "A or B" dining out question. What brought you to the point where you are choosing between these two restaurants? If you are particularly interested in this style of food, and food quality is your chief concern over atmosphere, there are places I'd choose before either of these, particularly Salaam or City Noor.
We look forward to hearing about your experience at whatever restaurant you choose.
Here's a link to one thread about each place mentioned:
Semiramis thread
Maza thread
City Noor thread
Salaam thread
These places are mentioned elsewhere as well.
Best,
Michael