The Real trio is feasting on scrubs. Against Rayo Vallecano, Levante, Malmö etc. Real's trio can rack up the goals as much as Barca's trio obviously and those games make up the majority of a season (80 % of total games played in a season if not more). So if you just compare total number of goals scored without context the numbers might seem similar to Barca's trio. What separates men from boys and delivers trophies are games against the tougher opponents and that's where Madrid's trio sees no light against Barca's trio.
Barca's current top scorer vs. Madrid's current top scorer.
Total numbers without context: 23 vs. 21 goals.
With context:
Suarez: 14 goals against the top half of the table.
Ronaldo: 4 goals against the top half of the table.
Suarez: 9 goals against the bottom half of the table.
Ronaldo: 17 goals against the bottom half of the table (8 goals against just 1 team)
There is a reason why Barca's trio have won ever single game against Atletico (arguably the fiercest defense in Europe) whereas Madrid have won only 2 of their last 10 games against Atletico.