Be the hit of your holiday party! Amaze your friends! Impress your family! Be one of those people who uses the correct verb in the phrasing of “one of those”!
Of course, unless one of those people are really steeped in English, not many are likely to notice that in both of those “one of those” phrases, the verb was wrong. For now, at least.
Many people learned that prepositional phrases—many of which start with “of”—drop out of the equation when deciding on how to make the verb agree with its subject. So if you wrote “The box of cookies on the counter (is or are) mine,” you were told that the subject was “box,” so you wanted the singular verb “is”—the plural in “of cookies” didn’t count.
That’s pretty straightforward. But when you replace “box” with “one,” the phrasing becomes one of those things that always (confuses or confuse?) us.
To figure out whether the verb should be singular or plural, some people will think “of those things” is prepositional, and will do what their English teachers said to do: Say “One confuses us.” They’d make “one” the subject, and so the verb would be singular.
And they’d be wrong.
Perhaps with a better English teacher, you would have turned the sentence around and said: “Of those things that confuse us, that is one.” You’d recognize that in the phrase “one of those things that,” “things” is the subject, not “one.”
But both of those require work. There’s an even easier way, though. As Patricia T. O’Conner points out so succinctly in Woe Is I: “If a that or a who comes before the verb, it’s plural: He’s one of the authors who say it best. If not, it’s singular: One of the authors says it best.”
One of the problems with having the right answer when nearly everyone else is wrong is that pretty soon, you’ll be the one of those who (is or are) wrong. Garner’s Modern American Usage says that the construction “one of the few that is,” which, as we see from O’Conner’s test, should be are, is at Stage 4 on the Language-Change Index. That means using a singular verb when, grammatically speaking, a plural one is required in a “one of the” phrase is acceptable to all but “a few linguistic stalwarts.”
Our suggestion: Be one of those stalwarts who get it right. And now, you can explain it to (more than one of) those who don’t get it.

Just One Of Those Things
http://www.youtube.com/watch?v=EAb_TBfuC8Q
♪ One of those bells that now and then rings
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It seems to me that avoiding something that's misused is another way of solving the problem.
> He's one of the authors who say it best.
Joe Blow says it best.
> One of the authors says it best.
Joe Blow says it best.
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Actually, I'd also avoid "says it best".
#1 Posted by F. Murray Rumpelstiltskin, CJR on Mon 27 Dec 2010 at 02:43 PM
I realized two things in a past few hours.
1) "One of..." is very hard to not use. It fits so naturally in a sentence.
2) The number of journalists misusing it is gigantic.
"one of those people that" | "one of those people who"
http://news.google.com/news/search?q=%22one%20of%20those%20people%20that%22%20%7C%20%22one%20of%20those%20people%20who%22&scoring=n
I've looked at too many examples - maybe I'm seeing things - but isn't even the New Yorker making a mistake here(?):
The fashion of Bottega Veneta’s Tomas Maier
http://www.newyorker.com/reporting/2011/01/03/110103fa_fact_colapinto
Tomas Maier, the head designer of the Italian fashion label Bottega Veneta, is one of those people who wants to erase every fault in their range of sight.
#2 Posted by F. Murray Rumpelstiltskin, CJR on Mon 27 Dec 2010 at 04:04 PM
You might be interested in this blog post sparked by one of the more famous word-wielders who ever made this grammatical error: http://www.detectivesbeyondborders.blogspot.com/2012/01/proofread-your-favorite-songs.html
#3 Posted by Peter, CJR on Wed 25 Jan 2012 at 04:02 PM