Ben Warrington's HH review of DaveyT86's deep SCOOP run was eye opening for me, more in the way that Ben thinks about things and how well he teaches them.  He is also doing a fantastic series recently on Advanced MTT Theory.  Also look at Andrew Brokos's hand reading series, value targeting, and his newest WCOOP run.  I just think they are both great teachers and players.  Daryl Jace's advanced hand reading series is great.  He also did a HH review series with Chris Moon that was very good, check that one out as well.  I think Moon and Jace both think about the game really well.  IMO HH reviews and theory videos have been the most helpful, they give you the best analysis and feedback and are well thought out.  Live sweats are great, but it's hard to get out your whole thought process in a live sweat and really analyze hands as they should be.  Hope this helps!