'of more benefit' is correct and usable in written English.
You can use it when you're comparing two different benefits. For example, "Studying for an eight hour period was of more benefit than studying for four hours."
And there is now the spectre of more benefit cuts after 2016.
It is difficult to avoid the suspicion that this delivery will be of more benefit to certain politicians than the Afghan people themselves.
Others noticed that the antis are mostly the early retired; fracking is "of more benefit to working-age people," judges Paul Mercer.
"The heartbreaking irony is that the Brussels disaster was more useful for the English than it was for us, more to the advantage of the aggressors than those targeted, of more benefit to the perpetrators than the victims," he wrote.
History suggests so and I'd add that, while the case for a strategic marriage could be made, these things tend to be of more benefit to the man than the woman.
Any work experience that helps you develop these skills is of more benefit than obtaining a higher-level qualification; you could combine further study with voluntary work if you want both.
We'll have to see whether promises of more benefits in the future will outweigh the short-term pain.
Overall the workshop discussions on the scenarios supported the general trend of more benefits for longer-term/higher risk studies.
Higher scores on the Benefits of Physical Activity Scale indicated a perception of more benefits, and a high test-retest reliability (r = 0.85) has been reported for this scale [ 40].
One researcher in the RSV-study, who was also a member of the community engagement advisory team (CAST) for the study, strongly supported provision of more benefits to participants and the broader community.
"Potentially, it would be of far more benefit if one of the starters for the national team had the rest and Ryan played".
