nexus 5 owners,where does the camera rank now?

Great news about the nexus 5 camera, still stuck between buying it and the LG G2 (though it will be a month or two before on my carrier ) but yesterday someone told me he thinks the camera only equals the galaxy s2 (his wife's handset) as a current s2 oowed eligible for an upgrade this spooked me, where does the nexus 5 really rank amongst android cameras with the update and resulting tweaks? Have any of you regretted 8MP and wished you got one of the 13MP phones ?