Gasol impacts the game offensively for his team that Howard can only dream of
He's hands dowm the best passing big man in the league right now
Not true at all, they just have very different types of impacts.
Howard is an absolutely devasting pick and roll player who commands a ton of help. He's also a pretty efficient post player despite all the negativity about his post game. He adds dimension of offensive rebounding that Gasol doesn't. Howard effects the offense without touching the ball via his post ups and rolls.
Gasol by contrast is primarily a high post man who can hit the 18 foot jump shot and is a great facilitator with the ball.
Both are fantastic facilitators for their team, the just do so in different ways.