What I want out of a company is to feel that all employees are treated fairly (I worked one place where the friendlier you were with the CEO the more benefits you got including company cars for no reason other than you were dating the company president or related to the CEO or sleeping with him). I want to feel my salary is fair for the work I'm supposed to do. I want to feel my salary is fair in comparison to the other people I work with (Nothing kills morale faster than knowing the worst employee you have is making the most money!)
I want a place where I'm treated as a professional - some flexibility but not so much that I can't ever find the people I need to work with on a project because our hours are so different.
I don't mind working some overtime especially at crunch time, but I don't want to feel as if you expect it to the point where you really should hire another person. I'm a human being and I do have a family and a life outside of work.
I want a company that respects that there are times when work is not the most important thing. The company I work for really chipped in and help me out when my beloved died a few months ago; they gave me more bereavement leave than the stated policy, they told the client that they would have to wait for something until I returned, my co-workers picked up my day-to-day tasks without complaint until I was able to handle them again.
One thing I have never had but would love to have is the ability to start investing into the 401 K from day 1 instead of 3-6 months later. Even if the company doesn't match until later, at least I never get used to having the money and then finding a way 6 months later to afford to contribute.
One place I worked at considered your time as a contractor or temporary worker in considering your time in service once you became a permanent employee. I got extra leave I wasn't expecting out that which was nice.
My current employer gave us a holiday out of the blue last year - that was pretty cool. They give us two days at 4th of July and two days at Christmas, New year's and Thanksgiving. As a result I'm ok with the fact we don't get every other possible holiday.
I don't want to have to beg desperately for the equipment and software I need to do my job.