those more recent scans of black are sweet. 👆 still, not entirely sure how difficult keeping a rift open is so it doesn't really matter. creating a singularity or stopping something from collapsing into one? not sure which is better, but i'll still call them comparable at the least.
black is stronger than rachel, but so is nate so back to this being nothing but very close. black MAY be able to turn off nate's powers, but nate may be able to do the same:
http://static.comicvine.com/uploads/ignore_jpg_scale_super/11115/111152067/3924015-xmanannual1996page15imagc4.jpg
along with stopping time, guess this could be viewed as a quickdraw. nate also has the option of simply draining black's psi energy dry if he chose.
and he didn't run away from osborne. lol ares did have a nice showing against him, but nate wasn't even trying to hurt anyone, really. he stopped his axe with ease then tried...countering him, whatever that was intended to mean. there are endless ways he could have handled ares were he actually po'd. he did handle sentry pretty effortlessly. /shrug
there really isn't anyway to see this that isn't really close.