The greatest CL games (collectively and consistently) ever played have been with away goals in the mix.
Hhhmmmm.........Only 3 away wins last year from (and Inc) Quarter Finals to the Final last year. (and they were against the worst performing teams left in comp Chavs (12th in PL), Benfica (although in fairness the 2nd leg game was a fun 3-3 with a flurry of late goals), Milan (4th in Serie A but miles off the pace as they were terrible, although Conte didn't think so), Those that went through was largely achieved by winning at home and drawing away.