Originally posted by The Ellimist
Luke says he's seen Rey's raw power only once before in Ben Solo (not Palpatine, not Yoda, not Vader, not even himself though he may not be counting himself).
I don't think that's a valid comparison, given that the term "raw" is probably being used to describe something that's untrained and inexperienced. I highly doubt Luke was looking at Rey and sizing her up to the seasoned veterans he only met while he was just a squire himself. Given that Yoda, Palpatine & Vader were all masters in Force, their power cannot be described as raw, meaning that they can probably be ruled out from this statement. A more reasonable suggestion, is that this puts Reylo directly above the other students of academy - other raw and inexperienced individuals that would have been overseen by Luke. Which means precisely jack shit in comparison to any member of the PT Jedi council.
Snoke thinks Ben Solo could eventually become powerful enough to defeat Luke, per the Visual Dictionary.
Okay, so not that Ben's potential is the same as Luke Skywalker's potential. Just that he might be able to beat the old hermit pussy hiding on some remote island, who dulled his own force connection.