Tough to say. Both are clearly talented and have shown alot of skill and technique. A common point seems to be, that despite their technical ability, they are both keen to enforce themselves on their opponent and push for a stoppage and beat their opponent up despite their lack of concussive power. Given that they've fought no one, it would then come down to who can execute their Plan A of out boxing their opponent and if that fails have a Plan B such as get aggressive. Basically it requires both to show us things we haven't seen because of the level they've fought at. Ultimately we don't know but we do know they are talented, technical and hungry so it makes for a good match up. Amateur pedigree should have most leaning towards Ogogo.
Ogogo and its not even close. Jr isn't reaching British level IMO , he may get a a lucky shot but no way he wins it