One of the sweetest person I know vs One of the sweetest people I know

Some examples from the web:

• One of the sweetest person I know
• One of the sweetest children I ever met.
• Flowers are tiny and hidden in the pyriform receptacle that during its maturity period is one of the sweetest fruits, the fig.
• He was one of the sweetest, gentlest people I'd ever met - a simple, trusting man who had a burden for lost souls.
• I used to be one of the sweetest people I knew, but recently, I've been slacking in the whole goodness department.
• But making you into a woman... it is one of the sweetest memories I carry with me.
• Sean Hannity is one of the sweetest guys I've ever met.
• Making a new friend, as we all know, is one of the sweetest things in life.
• It is one of the sweetest varieties, and each year 13.000 tons are produced, meant for central Europe.
• And for your information, Maggie was one of the sweetest, kindest, most open persons I've ever met.
• Johnny Cash has been speaking to me for a long, long time , remembers Cohen. It's one of the sweetest voices in my mind.
• To have a complete stranger come into my home, drink my tea and then try to turn me against one of the sweetest men I have ever known.
• At Montà starts one of the sweetest tourist itineraries - the Strada del Miele or "Honey Route" which is produced locally. Canale is the capital of Roero district and houses the Enoteca Regionale del Roero, it also boasts a famous restaurant.
• Thanks to the exaltation of the Moon (the planet of motherhood par excellence), the woman under the sign of Taurus can be one of the sweetest, most affectionate and tender mothers of the entire zodiac.
• and its surroundings The landscape surrounding the Trasimeno is one of the sweetest and suggestive of Umbria. On the hills covered by olive trees we find antique villages, towers, secular churches, fortresses.
• If you feel like switching off and losing yourself in the peaceful corners of the Ultzama Valley, we invite you to get to know one of the sweetest little houses in Navarre. Come to Eltso, close to the centennial oak fore...
• It is generally considered to be one of the sweetest-tasting varieties cultivated in California, and is highly prized by culinary experts for its flavor.
• Our baby's the sweetest one.
• I look for convicts in the Metro section and write to the ones with the sweetest eyes.
• They say... the first one's the sweetest.
• The littlest ones are the sweetest, don't you think?

Some examples from the web:

• One of the sweetest people I know
• One of the sweetest children I ever met.
• Flowers are tiny and hidden in the pyriform receptacle that during its maturity period is one of the sweetest fruits, the fig.
• He was one of the sweetest, gentlest people I'd ever met - a simple, trusting man who had a burden for lost souls.
• I used to be one of the sweetest people I knew, but recently, I've been slacking in the whole goodness department.
• But making you into a woman... it is one of the sweetest memories I carry with me.
• Sean Hannity is one of the sweetest guys I've ever met.
• Making a new friend, as we all know, is one of the sweetest things in life.
• It is one of the sweetest varieties, and each year 13.000 tons are produced, meant for central Europe.
• And for your information, Maggie was one of the sweetest, kindest, most open persons I've ever met.
• Johnny Cash has been speaking to me for a long, long time , remembers Cohen. It's one of the sweetest voices in my mind.
• To have a complete stranger come into my home, drink my tea and then try to turn me against one of the sweetest men I have ever known.
• At Montà starts one of the sweetest tourist itineraries - the Strada del Miele or "Honey Route" which is produced locally. Canale is the capital of Roero district and houses the Enoteca Regionale del Roero, it also boasts a famous restaurant.
• Thanks to the exaltation of the Moon (the planet of motherhood par excellence), the woman under the sign of Taurus can be one of the sweetest, most affectionate and tender mothers of the entire zodiac.
• and its surroundings The landscape surrounding the Trasimeno is one of the sweetest and suggestive of Umbria. On the hills covered by olive trees we find antique villages, towers, secular churches, fortresses.
• If you feel like switching off and losing yourself in the peaceful corners of the Ultzama Valley, we invite you to get to know one of the sweetest little houses in Navarre. Come to Eltso, close to the centennial oak fore...
• It is generally considered to be one of the sweetest-tasting varieties cultivated in California, and is highly prized by culinary experts for its flavor.
• Our baby's the sweetest one.
• I look for convicts in the Metro section and write to the ones with the sweetest eyes.
• They say... the first one's the sweetest.
• The littlest ones are the sweetest, don't you think?