Google

Stock options, prestige of working for a huge name.

In order to excel, you must give up most of your social life to compete with people willing to spend more than 10+ hours a day at work. It's not the fun company it used to be. I may be a little jaded since I was there in the early days, but it's become more like Microsoft, and the "Google culture" is more of a fable these days. Google buys technology these days and does not innovate from within.

None. There is no point; they all only care about how they look to upper management. There is always a focus on the flashy, shiny new product, not improvement on existing products or fixing problems some large customers are bothered by.