I thought Orleans is cheaper than Kanata. After house hunting for a while, I found is was not the case. Mainly because there are more house available in Kanada than in Orleans. However, Kanata is further away to downtown than Orleans. What I do not like it that there are many Francophones on Orleans.
Barhaven is pretty nice now. A lot of commercial construction is going on there. Life is more and more convenient. I heard that a new runway may be built in near future so the air traffic will not go through barhaven region. It is a rumor so please don't buy the house based on it .