I'm not familiar with the Boston station but I will check it out. I am much more familiar with the San Diego station. What makes FM94.9 in San Diego stand out is two reasons:
1 - The variety. 99X only plays a select few songs from artist. If you look at the playlist at 949, you will see what I am talking about.
2- The surprises. 95% of the songs are from the 90's, 2K and today but occasionally, they sneak in Ziggy Stardust from David Bowie or The Who. This is rare, but about every 4 hours, they sneak in a deep classic cut such as those. Now that I think about it, none of the classic rock stations even play Ziggy Stardust!
As you said above, The Strokes has more than two songs. What about older 30 seconds to Mars, and Helena by My Chem. Florence & The Machine, Interpol, Two Door Cinema Club, Older Kings of Leon, PJ Harvey, more variety and deeper cuts that were still hits from The Pumpkins (Mayonnaise - When's the last time you heard that?). How about Arcade Fire, deeper cuts from White Stripes, Silversun Pickups (they had more hits than Lazy Eye and Panic Room), My Morning Jacket, Bloc Party.... List goes on and on and on...