Just curious as to why everyone prefers a clip on?
Me? Convenience and the threat of
hijacking.
Seriously. One of my college friend's father was hijacked back in the 1960's and they ALWAYS grab for your tie to strangle you with it to assert control. Always. You can't effectively fight someone off when they're strangling you.
I don't know. Some old, crotchety, retired airline pilot told me that when I was a young neophyte, I'd consider his advice to be solid!
Additionally, I also know another pilot from my last airline that was physically assaulted where the person grabbed him by the tie and slammed him against the aircraft in a split second.
I'm not paranoid man, just from what I've seen happen when things go pear shaped, I think I'd be a fool to regularly wear a stanard tie.