Mi Adir from Alumni, as I said above is really gorgeous. Eli Gerstner sings a stunning mi adir (album: yosis). Also Dovid Gabay (album: Legabay – I THINK)
Mi bon siach – there’s always the classic abie one (I THINK its on an album called Kol Zimra??? or something??), probably way over-used but stunning anyway. I think he has composed a few but the one I’m thinking of is his nicest one (in my humble opinion, anyway;) ) Shalsheles 2 sings a stunning one as well, but again probably done too many times.
I am positive that Avraham Fried, MBD and Yaakov Shwekey all sing nice ones, just can’t think of them off the top of my head. Shwekey – maybe on cry no more? But I don’t really remember…. Also I think you should really consider the simcha leiner song, even if it’s not the exact words you’re looking for. It’s a gorgeous song, like all his music.