While In neurology there is not one single pathology that I am deeply as fascinated with, I love the brain , neuroanatomy , and the puzzle of correlating brain lesions/regions with pt presentation.
You sound like a neuropsychiatrist/behavioral neurologist in the making, which means either psychiatry residency + neuropsychiatry fellowship or neurology residency + behavioral neurology fellowship. To choose your original point (i.e. psychiatry vs. neurology residency), heed PistolPete's advice on choosing between hard data, imaging and procedures in neurology vs. more ambiguity and more interpersonal focus in psychiatry. Also consider which "bread and butter" cases you would rather see for a large part of your practice: eg, migraines and strokes vs. mood disorders and suicidality. Consider which aspects of each specialty you can't do without. Consider which aspects of each specialty you dislike and whether you see yourself dealing with those for years to come.
Combined neuro/psych residency sounds like a good option to look into, though there are very few programs/training positions unfortunately and you have to be fairly competitive/well-connected/have very well-defined career goals to get into one of those.
Alternatively, if you're interested in neuroanatomy, neuroimaging and functional correlations, you can do neuroimaging based psychiatry research. In fact, you can do functional neuroimaging psychiatry research on schizophrenia - e.g. studying auditory circuits in people with schizophrenia and what not. In other words, even though clinical psychiatry rarely turns to neuroanatomy/neuroimaging, it doesn't mean that you'll have to give up these interests if you go into psychiatry. In fact, if anything, with the booming research on brain stimulation approaches to psychiatric disorder treatments there are plenty of psychiatry research opportunities that involve neuroanatomy/neuroimaging.
(I like neuro and neuroanatomy/neuroimaging a lot as well; however, I don't care as much about the nervous system outside of the brain - no offense to anyone! - and I'm really interested in some aspects of psychiatry that neurology doesn't have like psychotherapy, so I had no difficulty choosing psychiatry. I've been doing - and plan to keep doing - neuroimaging based research of depression, different aspects of which are relevant to brain stimulation techniques or to psychotherapy - so I won't miss brain neuroanatomy/neuroimaging!)