As you finish up your holiday shopping, just consider some stats from the Center for an Urban Future, like this one: "There are now 16 retailers with more than 100 stores across the city." Topping that list is Dunkin Donuts, with 536 stores. At least one had a very bad rat problem this year.
That's up from 515 stores in 2013. Following Dunkin Donuts is Subway with 468 locations; then it's Duane Reade/Walgreens (with 318 stores); metroPCS (294); Starbucks (280); McDonalds (244); Baskin Robbins (210); Rite Aid (201); T-Mobile (185); and GNC (156). And, prepare to not be shocked: "Starbucks has more stores in Manhattan than any other national retailer, with 205 locations." Also:
This year the 10001 zip code in Midtown/Koreatown that is home to the Manhattan Mall is tied with 10314, home of the Staten Island Mall, as the zip codes with the largest number of national retailer locations in the city. Each of these has 180 national retailer locations. Other zip codes with large numbers of retailers include 10003 in Manhattan’s East Village (164 locations) and 10036 in Midtown West (150 locations). Brooklyn Heights 11201 is tied with 11234, home to Kings Plaza Shopping Center in Flatlands for the zip code with the largest number of chain stores of any zip code in Brooklyn (145 locations). In Queens, the Corona/Elmhurst zip code that is home to the Queens Center Mall, 11373 has the highest number of chain stores in that borough, and in the Bronx, Parkchester (10462) has the highest number of chain stores of any zip code in that borough (90).
Take a look at this map at the chain store saturation:
Via Center for an Urban Future
Aside from that, all boroughs, save Staten Island, "experienced net increases in the number of national retailers, with Queens seeing the largest year-over-year percentage increase in the number of chain stores." Since last year, the number of national chains in Queens increased by 6.4%; Bronx had a 4.2% increase, while Brooklyn's chain presence grew by 3.4% and Manhattan only had a 0.4% increase.
You can read the whole report here (PDF). One of the notable chains to add many stores is Urban Outfitters, which now has 14 locations—up from 10 last year—including its mega-store in Williamsburg with a bar/restaurant.