Bleu cheese is a little hard to handle in some instances (like snacking) ... but it really mellows and blends to add a new flavor profile in some recipes when it is cooked - adding just that little "something" to make a dish special.
I don't necessarily like cilantro on it's own or when over used - but there are dishes that use it that don't taste right without it when the flavors all meld together.
I agree - there is no real substitute .... but if you're not willing to give the recipe a try with it ... the best would be a good strong Feta.
"It ain't what you don't know that gets you in trouble. It's what you know for sure that just ain't so." - Mark Twain