Well a quick trip to a Best buy could solve this problem. You have a very good idea of what you want. There are many brands, i personally prefer Samnsung and Toshiba, they have great quality and good post sale service through call centers based in America.
I will like to add a few things:
<At least 500gb of hard drive
<HDD at least 5000 rpm
<RAm at least DDR3 1600 MHz
<Processor at least Intel Core i5 4200U or superior like Intel Core i7
If you are not into design or into gaming avoid laptops with powerfull graphic cards they will make the laptop 200 to 500 bucks more espensive.
There is no practical difference between LED and OLED, they will wrk the same and OLED is more expensive.
Long batery life is a scam. A few brands promise long life but it will always depend on what you are doing with the laptop, the brigthing settings of the screen, the number of applications running, etc. So do not take that as a necessity since they may increase the price for offeringa long battery life.