Dating Greek Men

For those of you that have dated greek men, do you find them to be any different than men who are non-greek? Is it different to date a greek man if you are greek yourself versus being a non greek dating a greek man? What are the pros and cons? I am just asking because generally I have found greek men to be very immature...and then there have been those that do a 360 on you after becoming greek and discovering that there are fraternity groupies out there...they are a completely different person after they cross!