While we're at it, Criminal podcast is a little less obsessive about one case and takes an look at a number of interesting\quirky\old cases http://thisiscriminal.com/
Ah, go on then - The Jinx is also incredible :-)
I found serial interesting for a few episodes, then she started spending hours analyzing the memories and text messages of high school students and it quickly became exhausting to listen to. I hope the guy gets a fair trial but it was simply a slog to listen to.