It is always a trade off. A firmer ride provides better
handling, better braking, better acceleration. If you go softer,
the ride is more comfortable and pliant, but the body roll when
taking turns becomes an issue (well at least it is for me)
Of course, some higher end cars like the Volvo S60R, some higher
end Mercs, Lotus and even Citroens have adjustable dampening but
even then, it is stilla choice between a sporty/harder/firmer ride
or a more supple/rolly ride.