What is intelligence?
While it's probably impossible to give a satisfying definition, we can say what entities we believe are intelligent - humans, cats, velociraptors etc. The only intelligence we know
(and thus consider intelligence) is that one in, generally speaking, animals. The one provided by a brain, based on interactions between a huge number of sparsely connected neurons and all that.
Now, I argue that we can't "give/not give the AI emotions" or "build them so they are flawless/limited by hardcoded laws/efficient". The intelligence we (animals) have is, in my opinion, a complete system along with emotions and feelings. All of it has emerged during evolution to keep us alive and reproducing.
What we can give to the robots is either a replica of the brain (as soon as we understand how it works) or a simulated environment and the ability to evolve. Both of these cases will potentially yield intelligence (the only kind of intelligence that we know and consider as such) and in both cases we will end up with artificial mind similar to ours (animals') - that is with fears, doubts, urges, consciousness, awareness and irrational behaviors - those things emerge during evolution as helpful for survival. I argue that intelligence, as a product of evolution (both biological and artificial), couldn't have occurred without all the accompanying quirks and randomness. Craziness, creativity, insanity, affection are all intrinsic parts of it.
Whether there are biological neurons or artificial elements has, in my opinion, no relevance. Neurons are machines, not all that different from non-organic devices. There is no magic to the system being organic as opposed to, say, electrical or even purely mathematical. The key is in the process of arranging the system. We don't know how the brain works not because we can't figure out neurons but because we can't untangle all the dependencies and connections (not saying we have neurons completely figured out though).
I believe a method to create AI is to let an artificial brain evolve. Even if the building blocks are just mathematic constructs and the evolutionary algorithm is just that - an algorithm with a bit of pseudo-random number generation thrown in, if we build a compelling virtual environment the product may be Strong AI. It's much harder than I made it sound though, that's why no-one has yet succeeded
In my opinion, a Strong AI would be much more alike to human mind than to a purely-logical, cold calculating computer (depending on how complex would the simulated environment be). I'm convinced we can't
create something we would call true AI just by trying to reverse engineer the problem or reality into logical automata because we don't think that way
and thus whatever we'd get out of such process would not be, by definition, considered intelligent by us. Intelligence is not only about trivial logic that we can explicitly program
Now, one can argue that a mathematical or electrical system that we artificially evolved would also be a kind of such logical automata, only designed by an evolutionary algorithm rather than explicitly. That is true. I believe it's the same case with biological brains - as I said, there's no inherent difference. If there's no magic, there's math. A human brain can also be, in principle, described by equations, only there's no imaginable way of doing that explicitly.