I prefer Lebanese over almost all other cuisines and have found that Aidas is the best in Calgary. The prices are reasonable, the service is good, although sometimes slow, but then again food is about enjoying slowly with a glass of wine.
I suggest the humus, falafel and spinach & lentil soup as flavourful starters. I usually follow-up with a shish taouk or beef platter. Try it, you can't go wrong and won't beat it for flavour and price.