I'm writing my first query letter and wonder how to go about comparing it to other books. I read in that genre and have books I could compare mine to, but I read a lot of more obscure titles and authors. For example, my book is YA Fantasy and my protagonist has a very similar voice to that of the protagonist in Brandon Sanderson's YA series. Sanderson is a big author but not well known for his YA fiction. SHould I use the comparison anyway or should I try and find something more mainstream? Only I fear something more mainstream will come off as an insincere comparison as those aren't the books that tend to influence my own writing.
Any and all advice on choosing proper comparison titles will be very much appreciated.