I would agree on Stormy Mondays.
My only caution is that in another post, I thought I remembered Tim recommending Mules for a more 'middy' sound.
I have Alnico II SMs in an S.G. which has very similar body resonance to a hollow body, and they sound lovely and clear, evenly voiced across the neck yet sweet. I have Alnico IV Mules in a Les Paul and they do sound more 'nasal' in the mid range than do the SMs. The Mules are detailed and balanced, but not quite as equally balanced across the tonal spectrum as the SMs.
I would therefore stick with the lovely detailed, clear, balanced and sweet Stormy Mondays for specific Blues & Jazz usage.
Also, if you like a clear yet thick sound like SRV, they have a haunting quality that sits somewhere between a humbucker and a fat single coil. I would use them for 60's Soul and Blues also for that reason; - the enigmantic 'best of both worlds' sound.
:D