Don't forget the (always forgotten ) 3rd one: the Alfa Romeo 164. More free for the design, Pininfarina did (imo) the most beautiful body of this "family". Which doesn't say it's a gorgeous design, but less common than the 3 others.
It was said to be the rebirth of Alfa's design, and in serious contrast with its "opponents" design (Omega, Scorpio, R25 and other blob cars of that time).
And according to WP, it has an industrial history interest too:
"The 164 was the last model to be developed while the Alfa Romeo was still a fully independent company, and was formally launched a few months after Fiat purchased the company."