Why do most of you guys choose CL over Kijiji..???

From my own research i see that the main differences are:

1.Kijiji is txt posting (no HTML). Which makes harder to randomize content, and make unique ads...but, you could still use random text in every message.

2.Kijiji does not need accounts...big plus...

3. Easier to URL block kijiji?

What am I missing? Is it because CL just has more traffic? Whats the bottle neck in Kijiji posting?