My vote is for the 325i...although I do think the 330i should be included. The X-Type in the list is the top model 3.0 as opposed to the base 2.5, the A4 is generic, and the price of the BMW and Merc are not far off from any of these. I don't like the G35s looks, especially the interior, the IS300 is too small, CTS is ugly as sin and looks cheaply built. BMW set the mark for entry level luxury with the 3 series and this is what everyone strives to hit.
I think Saab has done a great job with the new 93. The exterior looks have improved, as well as the interior seating, while keeping the Saab trademark look. It should be a well recepted by the general public and Sabb enthusiasts alike.