Rank Tracker | Die-hards Are Worlds Apart

Not much when it comes to favorite music or brands but plenty when it comes to TV personalities and athletes outside the Boston-New York rivalry - at least based on their social media interactions.

Fans of both teams share deep likes for rapper Lloyd Banks and the Madden NFL video game, according to Colligent, a San Francisco tracker of social media behavior to identify brand affinity. Tennessee Titans [ team stats ] QB Matt Hasselbeck and ESPN’s Michael Smith, Rachel Nichols and Chris Mortensen are among the commonly celebrated celebs.

But the diversity of Patriots and Giants supporters is more apparent in Colligent’s "mutual engagement" rankings. The company uses an algorithm to track fans’ postings on public Facebook, Twitter and MySpace [ website ] profiles and rank the crossover engagement with other entities.

"It’s not enough that New England Patriots [ team stats ] fans like Steven Tyler," said William Flaiz, vice president of brand and agencies. "Steven Tyler fans must like the New England Patriots as well for there to be a high mutual engagement score."

Patriots and Tyler fans share the greatest mutual affinity in the music category, followed closely by Bret Michaels. Giants fans are more aligned with Brooklyn rapper Joell Ortiz and DJ Envy. Pats fan Amanda Altieri of Harwich agreed with Tyler’s No. 1 ranking but couldn’t understand why a pair of New Kids on the Block figured fifth and seventh on the list.

"I love Steven Tyler, but Joey McIntyre and Jordan Knight?" the 24-year-old Facebook user said. "I’m going to have to go with ‘no.’ I don’t know anybody my age who listens to teeny-bopper stuff."

Patriots fans shared allegiances with fans of TD Garden, Madden NFL, Newbury Comics, Harpoon and Dunkin’ Donuts, while the top brands for Giants fans were camera retailer Adorama, Madison Square Garden, ticket reseller StubHub!, Citibank and Madden NFL. Colligent sells its data to advertisers for "predictive audience targeting."

"It can help uncover audiences that advertisers may not be aware of," Flaiz said. "The analogy we like to use is the iceberg, where 10 percent of the iceberg is above water and that’s the audience you know. Through brand affinities, we can help you find the 90 percent that’s underwater."

For Chicopee’s Mike Richard, the top placement of NESN Red Sox [ team stats ] color analyst Jerry Remy and slugger David Ortiz [ stats ] on the Pats fans’ celebrity list resonated.

"They’re the faces of Boston," the 48-year-old said.

Ira Kantor contributed to this report .