Hi,
Too many favorites in my collection to mention with the exception of a CD I recently purchased that blew me away in terms of SQ. It sounds quite a bit better than any of my XRCD's and is up there with some of my better SACD's. (Alison Krauss + Union Station Live as my favorite SACD)
The CD is Miles Davis "Kind of Blue" (FIM PureFlection Ultra HD 32-Bit). It will set you back about $40 but its a steal IMHO. I just wish there was a larger collection of PureFlection CD's.