We're getting off into the weeds here, but since folks are talking about engines: I'd actually have to say that the most enjoyable stock setup I've driven was, surprisingly, a 1970 Fairlady Z-L, sporting an L20 married to a 5 speed. This is a package combination that's largely unknown outside of Japan. The ratios, suspension geometry, and handling just feels "fun" in a really pleasing way that i have not felt in other setups. I personally prefer it to a stock US-specification setup, and for my style of everyday driving, I think it also compares favorably to the Z432. The Z432 is indeed also fun, but in a different, more purposeful and specific way. I struggle a little bit with the S20's power band, which is less sympathetic to lazy driving.
In comparison, the most "beefy" setup i've driven is my Rubello 3.1 S30 with 4-wheel disc brakes, 5 speed, and modern suspension. It's a super competent car, but if I'm being honest, it's really less fun to drive in most situations except really fast on the freeway.
The best news here is that there are so many variants of s30, both stock and custom, that there's something for everyone to like. That's quite an extraordinary achievement.