This is a remarkably subjective call.
In my opinon, the seat matters more than the suspension when it comes to comfort, especially on a long ride. For that, the best seats I have ever experienced were the leather seats in a 1998 Volvo S70. Not cloth; the cloth S70 seats are quite different and much firmer.
I really like the seats in the wifemobile - a 2004 BMW. The lumbar support is electric so you can adjust it on the fly to fit your comfort needs, and it moves up and down as well as in and out - love it. The car itself is not so good. That BMW ‘sport’ suspension option is brutal. I’ll never buy another.