I have had a very quick look at Columbus, WITHOUT GOING THROUGH LINE BY LINE of the T&C’s.
Based from the UK
Max trip cover with Columbus is 60 days – Amex 120 days
Max age with Columbus is 74 – Amex is 80
Here’s the biggest kicker, quote for quote Columbus comes out at over £1000 for my family verses the £300 for the annual fee for Amex.
My cover is for Family (wife + child) plus wife’s parents, worldwide cover. I have not read the exact defintions, but the Amex policy also provides cover for me flying in Corporate (non scheduled) and non AOC aircraft.
I will try and post the Amex T&C’s which are in the public domain.