Well I would have to go with the Australian Open as well. I have never attended any of the GSs but it seems the Aussie crowds are the most fair and knowledgeble tennis wise and the atmosphere seems quite accessible for anyone unlike Wimbledon. Plus the weather is very nice though it can be very hot. We don't have to worry about rains too much. I'm sure I would be most comfortable attending the Aussie Open. It's got the least amount of controversial incidents.