My personal taste is Cartier> Omega > Breitling > Tag.

I have the blue version of the Cartier. Only buy it if you are ok with scratches on the bezel. If you expect it to stay perfect it’s not the watch for you.

I have had an Omega Seamaster. It was an amazing watch but I ended up selling it to pick up a Submariner because to me the Sub is the epitome of a dive watch.

I have never owned a Breitling but was always intrigued by the Navitimer and like their current lineup, especially the Pistachio dials.

I used to own an older Tag but I passed it on to my son as it has a more youthful aesthetic imo.

All of the pieces on your short list are great watches though. You can’t go wrong imo.

If comparing exactly these two models, I go with the AT. No cyclops, better symmetry, see thru caseback, price.

To decide America’s Team once and for all!

Unlikely. Making money selling used watches is very difficult unless you bought them at an amazingly low cost.

Yes.

https://preview.redd.it/8basimr0mnwb1.jpeg?width=2656&format=pjpg&auto=webp&s=acd1ef123ea768ba45c0c1137f4ce77b75abe843

List it as WTT on r/watchexchange

Always one good quality piece over 3 lesser. Quality > quantity.