I realize this may not be on alot of peoples short list, but the Email Alert editor used with Advanced alerting is horrible. there is no formatting other than using a "space" or ${CtrlLF}. The competition has you beat on this hands down.
When we send an email or text msg alert, we want to include quite a bit of info, no just "node is down". We include data such as Location, contact informatin, etc, and the lack of formatting in the editor makes these messages very hard to read.
As a point of comparison, the THWACK forums has a more robust edtior than software we pay quite a lot of $$ for.