Looking at used cars with high km / mileage 2008 honda civic with 370000 kms or 2008 jeep patriot with 270000 which would you choose?

Civic one owner since new

Neither. Buying a high mileage vehicle is a big risk.

Honda with 230k miles is a risk. Jeep with 168k is a risk too.

Probably the civic IF you get a 2 thumbs up from an independent mechanic.
Do not buy either without having it checked first.

And, i would look for lower mile cars. 19 months ago, I sold a 94 Buick Century with 89k, a cracked windshield but legal and a broken AC for $1595. Something like that would beat either.

The Honda.