There is a fundamental difference, I think, between thought processes and intuition. A droid is capable of thinking. It can view a situation and, under the parameters of its programming, devise a means to solve a problem or perform a task. I think that process is most related to thought. Humans observe, rationalize, and then perform based on our surroundings. Not too different, right?
Well intuition is different. For example, when faced with two choices that have no apparent benefit either way, and yet one is most certainly better than another by principle of the situation (i.e. trying to solve a labyrinth by trial and error alone, cliché but an effective example), this is a situation where intuition is required. Humans can be "lucky" or "unlucky" and choose the right or wrong path to follow. However, when a droid is faced with such a decision, it only has its thought processes to judge the situation. It "knows" that there is a 50% chance of picking the correct choice. There is also a 50% chance to pick the wrong choice.
When I think of a droid trying to use its processors to make this decision, I would imagine most droids (fresh off of the line, without the experience that R2D2 obviously showed in dealing with spontaneous situations) would stand there. They would be unable to compute a proper solution to their quandary and simply shut off. The droid is not designed to make those judgments. It can perform a task, it cannot make intuitive decisions.
Of course, the longer a droid exists, the more experience it gains, it is possible that the droid will develop in certain ways. However, it will always remain loyal to its programming. (See Isaac Asimov)