The phrase "are more knowledgeable and" is correct and usable in written English.
It can be used when comparing the knowledge levels of two or more subjects, typically in a context where one is being described as having greater knowledge than another.
Example: "The experts in the field are more knowledgeable and experienced than the newcomers."
Alternatives: "possess greater knowledge and" or "are better informed and".
"Our clients are more knowledgeable and passionate about food, and now you have to do something that no one else can do," said Lisa Dennison, the chairwoman of Sotheby's North and South America, adding that she is so obsessed with food herself that she regularly blogs on the company's Web site about hot new restaurants as well as art.
Certainly for a competitor the Italian race is a nicer place to be: the food is better, there are fewer transfers after stage finishes, the tifosi are more knowledgeable and appreciative, the scenery is spectacular, and, generally, the ambience feels friendlier.
"We need support from the various international agencies which are more knowledgeable and equipped to handle the kind of emergency we face now," he said.
That being said, I always recommend you make your camera purchases from your local camera store – the sales people are more knowledgeable, and the after purchase support can't be beat.
There have to be literally millions of Americans who are more knowledgeable and experienced than her.
5. Welcome to the age of the empowered customer - Today's customers are more knowledgeable and connected than ever before.
Though I am more knowledgeable and more versatile, I am not an expert in every area.
Bush also fares badly in polls of American historians and academics (who are assumed to be more knowledgeable and objective).
And because Mr. Gore focused much of his attention on health care during his 16 years in the House and the Senate, the Gore campaign views health policy as an issue that can reinforce the notion that Mr. Gore is more knowledgeable and better prepared than Mr. Bush.
The key goal of the project is to develop decision support technologies that can assist citizens to be more knowledgeable and effective spokespersons for their interests in a sustainable built environment.
Thus, although household survey respondents generally gave low evaluations of CHS, residents with experience at CHS were more knowledgeable and favorable about CHS, with more favorable responses for private CHS on the few dimensions where there were ownership differences.
