I actually think virtue ethics/Nicomachean ethics are the most interesting moral arguments (I'd throw Ross's primae facie duties along with Bentham's utilitarianism in there as well). However, I'm also a big Aristotle fan (just think he's the most ingenious philosopher other than Kant), so take that comment with a grain of salt, perhaps.
In general, I think people are actually a moral admixture of deontological views meshed with act-utilitarianism. In our broad collective ideal of "morality," we have very rigged sense of right and wrong (e.g., killing is wrong). Moreover, if you were to press most people on this matter they may not express sentiments that deliberately state, "Killing violates the autonomy of others," or "killing uses others as a means to an end," or "killing fails the categorical imperative," which would make Kant's toes curl; but, they'd be likely to say something akin to a pared down, "Killing is just wrong," which is in-line with Kant's view of obligation and motivation. So, on one hand we have our very broad and idealistic sense of what we believe to be right and wrong, and then on the other hand we have the reality of the world -- which we encounter as extremely fluid. The world, for better or worse, doesn't always allow us to keep our ideals static. I may very well believe killing is wrong. Yet, when an armed intruder breaks into my home, I'm sandwiched between two moral ideals (i.e., killing is wrong, protecting my family) and I have to give one precedence in this circumstance. I quickly decide what to give precedence vis-à-vis utilitarian tenets. One might not calculate the felicity, utils, etc. But, we know off hand what we "think" would bring about the most pleasure (i.e. killing the intruder and protecting our family and interests).
Note: I have a problem with most moral theories because I don't think any effectively capture how problematic self-interests are in regard to doing what we perceive is the "right" thing. Psychological egoism is too simplistic and I disagree that one can never perform a truly altruistic act (I do agree it's very rare). Aristotle addresses it somewhat with the notion of "weakness of will," in his ethics, but it's not well fleshed out in my opinion.