With due respect to everyones views, I'd like to share something here. I feel high commissions of every country judge every case with alot of suspicion and doubt, because they've seen all types of cases. Sending proof is for our own satisfaction, as we're providing them with enough data to analyse how genuine our relationship is. The less the information, the less data there is to examine, which may or may not cause doubts in the minds of immigration officers.
Thinking of it rationally, if I was a visa officer I'd think couples who have/had been living together need to be reunited as they've already lived together as a family, in a setup- along with cases where the couple has a child/children. Whereas, Nikkah only cases are basically just paper marriage- even though according to country law, legally, religiously, morally, ethically, it is the Nikkah which is considered actual marriage, not the rukhsati. Rukhsati is just rasm-ana....It is the official giving away of the bride, by her parents. One can have their Nikkah, and not rukhsati on the basis that they are completing their education, working, or due to some other issue. If I was the visa officer, a nikkah only case wouldnt seem as 'urgent' as a case where the couple had been living together, or as a case where the woman has a newborn kid. I'd like to clarify here that by 'urgent' I dont mean judgement on basis of priority, but on basis of a couples togetherness and their living or have lived as a family in harmony. But if it is a Nikkah only case, it might come across as being not so imperative as the couple might have some unfinished tasks-and thus their file might not be looked at very seriously, or sometimes, with suspicion too. However, there have been Nikkah only cases in the past which have received visas, and those might have been on the basis of the proof provided. The couple could've known each other for a long time, and thus, establishing the relationship between them or their families could have been convincing.
As far as rukhsati for men is concerned, again, its obvious that no man gets rukhsati-o-fied. If he is the applicant, again, rukhsati cases seem more valid because both the guy and girl have lived together as a couple, making it more difficult for them when they are apart. Whereas, if its just a Nikkah and the girl returns to Canada, then to the couple the feeling is pretty much like being engaged as they dont know what living together feels like- and that is what CHC is looking at. When the sponsor doesnt visit the applicant for a long duration, even then their case is looked at with suspicion-as anyone, who has lived with their better half would obviously want to see them more often, or talk to them frequently. Hence, the 'additional information' such as call logs, skype logs, tickets and boarding passes along with photographs.