To over simplify the changes in ofsted - I've been teaching for 3 years and worked in 2 inner city schools in Liverpool, whose students come from very deprived areas. The standard of teaching, ethos, disclipline, safeguarding, results, support in both schools are almost identical. So much so that it made my transition from one to the other really easy.
School 1 Ofsted inspection last year using old criteria graded them oustanding. School 2 inspection this year using new criteria - graded Good.
In my opinion there is nothing to choose between the schools, and both do everything they can to assist, develop and model the students. The only difference between them is the criteria they are graded against, and oustanding school is now good, and as such it is easier to show just about any school in a worse light.