Here's my 3 cents..
I've taught courses in Health Care Admin for over 20 years, am a former nurse and lab tech, so from a professional standpoint have a little understanding of a very complicated field. Personally, I find myself in a fight for some type of service at least once a month as along with having a son with CF my husband has had a quad bypass... etc etc. I work for the state, and it has a good plan, but the deductibles and the premiums are rising each year, as are my out of pocket costs. So my opinion is based on all of my personal and professional experiences, and listening to the candidates, and of course its just my opinion subject to change 8*) .
First Romney - he seems to change his opinions about health care depending on which way the (political) wind blows (of course this is true for most politicians). Sentorum.. given some of his stranger comments his chances of being nominated are DOA. Ron Paul seems like a nice guy, but the few times I've heard him talk about the health care system, I ended up concluding that his understanding of how the system works is 20-30 years out of date. Obama's policy seems to be moving in the right direction, but he's got too many of the 'big' stakeholders (ie big pharma, insurers etc) sitting at the table. By the way I think we should say call the bill HOUSEcare as Obama just signed the bill, he didn't write it.
Having said the above, the system (pre Obamacare) was/is in a state of near collapse, the cost of care and insurance had been rising each year. Hospitals were/are closing in rural and inner city areas. With the recession, companies begin opting for higher deductibles, shifting more of the premium costs to the worker, putting caps in place and some companies dropped coverage in whole or part. Some of you may not be aware by a few years back a guy was diagnosed with HIV, after working for a company for 6 years. The company offered a self-insured health care plan with a one million dollar cap for its employees. The company decided to cap care for HIV/AIDS at $5000 after his diagnosis. His doctor sued for him under ADA, but the courts ruled in the company's favor due to the high cost of caring for HIV/AIDS and ERISA. In one hearing there was a comment that this ruling could also be applied to other high cost diseases (Greenberg v. H & H Music).
If you look at the stats the government is providing a higher and higher percentage of coverage each year. Do I like Obamacare? Not entirely, but then again its a lot better that what we have now UNLESS you work for a non-ERISA company that provides you with a 'Cadillac' health care plan which is guaranteed not to change.