My sister dated the president of a particular fraternity at the school she was at. He was a great guy and strongly encouraged me to rush my local chapter that fall. I told him it wasn't my thing and he gave me the "you just don't know" speech. Then he had an opportunity to work with said chapter. He told me not to bother.
Yeah, it's funny. I had a couple former students and one cousin ask me if they should rush "my" fraternity. I told them I had no idea what the fraternity was like at any other school than my own. And at the time I visited my old house for football games/BBQs so I could at least vouch for my own chapter having good guys but these days I can't even say that.
I know there's this idea of fostering a nationwide "brotherhood" but nobody joins a fraternity (or at least no one should) because of the letters out front or because their handshake, pledge or whatever. When we had regional meetings a lot of the guys were cool, some chapters had some cool guys and some jerks and some were full of people I didn't even want to be around. I remember the chapter of my fraternity at UC Santa Barbara at that time seeming having nothing but douchebags for members.
When it comes down to it any given (social) fraternity is just the sum of its members at that time and any decision to join should just be based on whether they are people you want to be friends with.
