The phrase "a system that favors" is correct and usable in written English.
It can be used when discussing a system or structure that provides advantages or benefits to certain individuals or groups over others.
Example: "The new policy implemented by the government creates a system that favors large corporations over small businesses."
Alternatives: "a system that benefits" or "a system that prioritizes".
The U.S. government spends more than $51 billion a year on a system that favors arrests and incarceration over treatment and support.
He does it in a system that favors rural voters.
There is something wrong with a system that favors sick people who have access to sitcom stars over those who don't.
Mr. Shure speculated that women's participation in New Jersey politics might be stifled by a system that favors incumbents and veteran politicians over newcomers.
The intent of a system that favors the youngest and the healthiest is to ensure the best and longest use of donated kidneys.
Some people are fine with the contests — particularly infertile people who see them as adding some fairness to a system that favors the wealthy.
In Chicago, Duhon was part of a crowded backcourt and played in a system that favored scoring guards.
Liberals struggled in the wilderness for decades before they convinced most Americans that the interests of middle- and working-class citizens were not well served by a system that favored the rich and powerful.
For decades, Greece has gone back and forth between the two main parties, each dominated by a political dynasty to which its leader belongs, and each on a system that favored patronage and party interests.
In the case of the Republican party, it was clearly that of a system that favored candidates that were able to influence the media and the donors in the early days of the campaign.
Dr. Dean, whose thousands of enthusiastic out-of-state volunteers initially seemed to make him a strong favorite in a caucus system that favors shoe leather and turnout, is far from politically dead.
