In my experiences at GE, IBM and HP, large corporations tend to be terrible, political places to work, especially if they're going through lay-offs and re-organizations, which is nearly always in this day and age. Places get so big that the overhead of decision-making, corporate BS and politics s---s up all of the time and energy that would be otherwise be (better) spent on understanding and serving customers, developing innovative products and solutions and properly developing employees.
At the end of the day, though, GE, IBM and HP aren't monopolies the way that Intel has been. That's led to a special kind of cultural dysfunction at Intel. Energy that would/should have been spent on competing in the marketplace has turned into competition between fiefdoms at Intel, among senior execs for internal resources and among employees for good focal ratings. The external competition and the needs of the customer have almost become an afterthought. Kind of like working for the old AT&T. I've never worked at a place with as many pointless meetings and as operationally inept as Intel. I attribute this to the broken culture and internal focus.