Do you think Jesus tells different people different things
Different things, sure. (as in different subjects... like Peter is the one who heard about clean/unclean animals... though Paul also heard this being sent TO the Gentiles, and the others would have heard it also; but like how John is the one who received the Revelation)
Contradicting things, no.
Someone is mistaken (perhaps ingrained doctrines and religion, etc... are interfering in hearing the Truth from the source).
or if someone claimed to hear something that contradicted what you'd been told would you assume they were deluding themselves?
I would most likely assume that the other person is mistaken... if they claim something other than what my Lord has told me... though I might also ask again, and test what the other person heard (as written above). I have not had someone share something that passed all those 'tests', that was in contradiction to what my Lord has also said to me.
Seriously, I recently heard a very evangelical sermon where a teenage girl said she'd just left university because Jesus told her too, and she hadn't told her parents yet because they'd paid for her and would be very upset. Somehow this was linked to a text about Ruth and Boaz. I just thought this was crazy. How can you be certain you're not just doing what you want and using Jesus to justify it? Like when George Bush said Jesus told him to go to war.
Well, I suppose as per that girl... the reason she was told to leave might matter. But that really is her business. If she claims something that is not against Christ, that is not against love, that is not against what is written... even though I might not hear it (yet) myself... he who is not against you is for you. I would just 'shelve' it, until such a time as I would hear on the matter. If it is even my business, regarding a personal matter like that.
In any case, test what is claimed against Christ, against love, and against what is written.
George Bush... did not hear that from Christ. Christ never taught his followers to go to war, especially not in his name; just the opposite. (NO more of that... he said to Peter... for he who lives by the sword dies by the sword) In all of the things that Christ taught his followers to do... going to war was not among them. Going to war was in fact against them.
Peace to you,
tammy