The below is all theoretical and not at all based on any real life IXFPs.
IXFP type 5w4. Ji is inherently more oriented towards a god complex because it trusts it's own decision-making process as the arbiter of truth. Fi is more likely because it determines value judgement. I voted INFP because it might be more likely, but I really don't know enough about Se vs Ne to determine for sure.
intjs can definitely be control freaks but they don't really correlate with narcissistic personality disorder. that would be the entjs who want to control other people and have the world revolve around them. so, entjs win!
I'd have to say ENTJ, most INTJs I've know like to kind of control from behind the scenes in a more subtle way. ENTJ seems to be more like "Lol, look what I've done now, all hail me." However, I may be a bit biased seeing as how I am related to an ENTJ who likely actually does have NPD.
A man builds. A parasite asks 'Where is my share?'
A man creates. A parasite says, 'What will the neighbors think?'
A man invents. A parasite says, 'Watch out, or you might tread on the toes of God... '