"sleeps with angels" was disappointing and "weld" is a terribly recorded live album.
Conversely, when I listened to Nirvana's "unplugged" album it felt like I was in the 5th row. It was a very realistic recording that wasnt muddied. SRV's "The sky is crying" sounds great and "Live Alive" is good too for a live recording.
I always love the comment about the M22's that "they dont break the news to you softly, they just tell you how it is".
Try and have a listen to some. I know the listening session we had at Mojo's with M3, M22, M60 and M80's really opened my eyes to what I prefer.