Plz help!! Look at this thread once. Canada or Australia

[vikalp]

I have done my btech in 2011 with 64 percent on CSE . After that one of diploma cadac from 2012-2013 , 6 months. I was working in IT industry from last 5 years. My domain was iPhone application development. I have valid it and salary in account and form 16. My last designation was senior engineer . Now I wish to go for masters in winter intake. Many agen has told me your profile is not good for study visa. So I should apply for Australia . One agent s telling me that I will nt get university in Canada, but I can go for mangement diploma in some colleges. But, my first agent told me , may be I get offer letter, but embassy will refuse my Visa as my educational gap is there. She is asking me to go to australian. I am so confused. Is there any way I can apply to both Canada and Australia?but I get offer letter from both universities, and I go with canda rejecting offer letter from australia. Then if I Canadian embassy refuse my Visa , Can I reapply Australian university for may intake next year. My first preference is Canada.