I moved to Philly earlier this year after living in Boston for over fifteen years and I can tell you....the radio down here in many ways is MUCH better! Much more variety, plus most of the same formats are represented.
News - KYW is 24/7, WBZ is not, but I'm not big into RW talk.
Hot AC - WISX is more rhythmic leaning than WBMX. A plus.
AAA - WXPN is non comm and more agressive musically than WXRV
Public Radio - WBUR and WHYY are fairly even...and on the same frequency!
Country - Both WXTU and WKLB are typical major market country. Meh.
Rock - Both have heritage rockers, but WMMR is more WHJY-ish than WAAF, which I prefer.
Classical - Both have non comms, WCRB and WRTI.
Top 40 - I like Q-102 better musically than Kiss, but I miss Matty.
AC- B101 and Magic are about the same.
Alternative - Radio 1045 and WBOS are similar, but Philly plays more currents. No FNX though

Rhythmic - Big advantage for Philly. Wired leans more pop, and Hot 107.9 skews urban. WJMN tries to split the difference
70's-80's Oldies - WOGL is better than WODS, and they don't do Christmas! Don't miss WROR at all.
Classic Rock - WMGK leans more classic hits than WZLX, but they cover most of the same ground.
Sports - Both cites have two sports stations. WIP and WEEI are about the same. The Fanatic isn't as good as 98.5
Talk - WPHT and WRKO are about the same. No FM talker here. Not a big loss...
Christian talk - Boston has 590, Philly has 106.9. Don't care either way...
Wierd Chinese propaganda - WILD & WNWR. Just in case.
Then you get the formats Boston doesn't have. A mainstream Urban. Two Urban AC's, one hit oriented, the other digs deeper. Philly still has their Adult Hits station "Ben-FM" And they have an FM gospel station. Plus, an AM R&B oldies station is coming after the holidays. Outside of no Matty, WFNX and WJIB, I don't miss the market at all....