I forgot to respond to the "lame benefits package" question! Issues I look at when evaluating a benefits package (and I am defining "benefits" broadly, to include anything that does not relate directly to your salary/research funding) are as follows:
1) How much you end up paying for your insurance and how good your insurance options are. Really great places cover the cost of your medical, vision, and dental insurance, will add your family at a reasonable price, and offer very good benefits (low co-pays, coverage of everything you want, etc.). In the middle, some offer ok insurance for free with the option to pay to upgrade, and how much it costs to add your family depends on how much you upgrade, if at all. The "worst" places make you pay for your insurance no matter what, and it's just a matter of whether you want to pay for crappy insurance or pay more for better insurance.
2) What kind of accommodations they offer for things like maternity/paternity leave. This can range from the very posh 100% maternity/paternity leave for birth or adoption for an entire semester to the bare legally-required minimum of 3 months unpaid leave for mothers giving birth only, guaranteed not to count against your tenure evaluation.
3) What kind of provisions they have for health and wellness (free gym access? cheap fitness classes either through insurance or through the school? etc.) and whether your family can make use of those facilities/opportunities also.
4) What kind of relocation assistance do they offer? There are two subcategories of this:
a) Reimbursement for moving (some places will offer nothing, some places will give you a fixed amount that you can spend on your move, some will raise that amount incrementally if you live far away and/or if you have a spouse + kids, and some will straight up reimburse the cost of your move, including providing movers that they pay directly, whatever it costs)
b) Help finding a place to live. If you are not familiar with the area you are moving to, it is hard to find a place you will be happy living in for your first year when you do not live nearby. Some places have a set of houses new faculty can rent for a year or two while they get settled and look for a house to buy or a more long-term rental. These places are often subsidized and maintained by the school (e.g. more space for cheaper), and are guaranteed to be located somewhere convenient/nearby for faculty, since that is the entire reason they exist. Some places offer assistance getting a great mortgage (like, they have special programs to incentivize faculty to live near campus, and they offer very low interest rates and so on). Other places just kind of say "you're on your own."
5) Help finding work for your spouse. Some places will actually let you present finding a job for your spouse in one of the offices at the college/university as a contingency of your agreement to work there (usually, this is only possible at larger places - small colleges just don't have the flexibility to do this). Others will have a list of certain places that professors' spouses often find work, and will refer you to those places. Others will basically just say "good luck."
I weigh 1, 2, and 3 most heavily, but these are all important in their own way, depending on your situation.