At my CL's group both team that got through group stage were the weakest teams to begin with.

Level 3:
The first place went to the lowest quality team (20.9). Only lost one game, to me. I came second (AQ 22.1, but begun under 20), only lost 1 game to the first place. 3rd place is AQ 23.8 and last spot is AQ 23 (begun as the highest quality team in the group). All active (i saw the 3rd place online during both our matches), though last place seems only semi active.