Saiyan saga was 7/10 tops. Some good jokes, but the whole thing wasn't as refined yet.
Namek is 10/10, no question about it, Frieza has tons of character, editing reached its peak (just enough to serve its purpose, often simplistic, not overused), good pacing.
Androids and Cell just became a snorefest fast, the whole things was slow and often overly serious, like Gohan vs Cell.
Code MENT is another 10/10 abridged series for me, pure gold. Too bad it died.