A few posts up, there were some comments about the downsides of certain models. Here is the thing; there is huge pressure on EVERY manufacturer to get things to market fast. Modern cars are so complex that some hiccups are inevitable.
Hyundai/Kia ... much better than they've been in the past, but from what I've been hearing, they still have a ways to go on ride/handling/steering. All of the engines and transmissions are new within the last couple of years, i.e. unproven.
Dodge Dart ... Complete question mark. Vehicle is not in production yet. The Fiat influence is a question mark. The use of a Hyundai automatic transmission is a question mark (so buy the manual). There's an upcoming ZF-sourced 9-speed (!) automatic transmission. I'd stay away from anything automatic-transmission-related with these.
Ford Focus (and Fiesta) ... stay away from the automatic transmission! This is a dual-clutch automatic similar to VW/Audi DSG transmissions. But VW has this mostly figured out (my dad has one, and it works well). Ford appears not to have figured it out yet.
Toyota ... The Corolla has been around for a few years. They're well-proven, but I find them dismally boring and cheap-feeling. Power steering is ridiculously over-boosted. Although the car will probably last for 10 years ... I'd go out of my mind in the process. No thanks.
Honda ... The 2012 Civic has been roundly criticized for its cheapened interior and lack of involvement in the driving experience (overassisted power steering and too-soft suspension). But people keep buying them anyways - it may be people who haven't been shopping around. Apparently this car is going to get a make-over for model year 2013 - a year earlier than planned. Honda has not figured out how to do hybrids. They've got a lineup of new direct-injection engines in the works (good) but they're going to be using CVT for their automatic transmissions (strong fail probability).
Mazda ... the Skyactiv powertrains are promising. Have they fixed the rust problems yet?
GM ... Cruze seems pretty good. Haven't heard of major problems. The Volt fire situation was an overreaction. The only reason these issues made the news AT ALL is that this car is different from the others, so it made the news. Meanwhile, car fires caused by other models went unreported. There is no statistical evidence that Volts are involved in any more car fires than any other model. Volt is way too expensive, though. Ford has a new model called C-max which is probably going to kick it to the curb ...
Subaru ... interesting report from someone above on the new Impreza. Auto transmission is a new CVT. Strong fail possibility right there.
VW ... personal bias here, I have a 2006 Jetta TDI which has been good (and has 361,000 km on it). But I won't buy the 2009+ TDI. They've been having major problems with the high-pressure fuel pump, and certain cold-weather conditions have been causing intercoolers to freeze up. The Passat TDI fixes the intercooler-freezing situation by using an air-to-water intercooler. I don't like the bland styling of the current (2011+) Jetta and Passat, nor the de-contenting and cheapening that came along with it. There's a new VW Golf coming next year, with new engines, and I know already that they'll be using an air-to-water intercooler, so that issue will be fixed - and VW has already stated that the Golf won't be cheapened.