What speaker is the most musical, one you never want to sell?

Maybe too late to respond to this one, but going through email to catch up after vacation and a 6/7 fusion in my neck and had to respond.

 I have several pairs of B&W Rock Solids. These vestal little speakers sound great, handle ~150 watts each at 4ohms, can work inside and outside...currently have a pair in the garage as front surround speakers with the Rock Solid passive sub also two pairs in another room as front and back surrounds. I've had these over 30 years, probably 40 years, all sound good, have had to clean out ports from the mud wasps a couple of times when using them as outdoor patio speakers. These are the perfect utility speakers and sound great. Yes, need a sub to fill in the lows, but if you want to fill a room with sound and don't want to break the budget this was the way to go. 

Interesting that the old Dyna A-25s are mentioned by a couple of folks.  I always admired those and owned a few pair over the years.  Maybe not a Top 10 in overall performance but still very high in musical presentation and enjoyment.

Iʻve been running a set of custom built open baffle Linkwitz Orions for about 20 years now.  Like many, I get hit with "Audio Lust" from time to time, but then I fire up the Orions and fall in love again.  I especially love them for voices and acoustic piano.  Being open baffle, the tonal balance is consistent throughout the room  Imaging is best in the sweet spot of course, like most loudspeakers, but they sound good everywhere.  They also have terrific dynamic range and can crank as loud as I like on large symphonic works, big band jazz, etc.

McIntosh XRT 20's. Not sure about "most" musical, but they were a wedding gift from my wife 38 years ago. Definitely both keepers.

Audio Physic Virgo II. Going on their 20th year, still play like new. I keep upgrading amp and pre-amp, but speakers stay. Using Eversolo A10 into Ayre 5ex. The original Stereoohile reviewer said “Where’d they go?”  Such is their soundstage.