What the? I'm serious here. I don't want to be stuck for four years around arrogant, pompous, parochial and selfish wankers who have never mowed their front lawn before in their entire lives or who have always had their beds done for them each morning.
What the???
You should definitely not pick university due to how "snobbish" you perceive the other students are. You should pick the course that is best for you, and matches your interests and future aspirations. I would not think that it would be much fun to let people you don't like dictate which course you do / don't do.
And whats with the emphasis on snobby people? Wouldn't it be worse to be stuck in a university where no one cares about the content of the course? Or full of incompetent students who lack critical thinking skills? Frankly I don't care how many times my peers have mown their lawn in the past. It is completely irrelevant, So long as they are interesting people with good ideas and passion for what they are doing then I will enjoy being around them while I am learning, reguardless of who makes their bed.
If your going to try and avoid people at least let it be people who will actually get in your way, such as incompetent students dragging the standards of the curriculum down to the lowest common denominator, abnoxious jerks who interrupt lectures with comments, questions, or relating something to their life story about once every 3 minutes, and constantly interrupt to question the professor on a topic (s)he is an international expert in...
Your aversion to what you perceive to be "snobby people" sounds more like an internal problem for you then an external one. If you are actually worried about snobs before you have even been to university, and are prepared to change your preferences due to the levels of snobiness in the students, then chances are you will perceive snobbiness no matter where you are. You won't beat this irrational thinking by avoiding certain universities. It sounds like you have been somehow conditioned to believe that universities are full of "snobs" which are these mythical 'un-Australian' rich kids who went to private schools and eat caviar for breakfast...
Back to reality... If you already have an attitude like that then you will have a self inflicted disadvantage at university. Academia has got nothing to do with wealth. It is about knowledge and critical thinking. Creating and discovering new knowledge, developing academic fields, teaching knowledge and developing intellectual virtues in students. It is not about whose parents have a bigger boat. Grow up a little, you're not in highschool any more, no one who is going to last at uni cares about petty shit like whose parents drive a convertible... Its time for you to transcend above that level of thinking.