I like Dan Thompson calls.. I also make some of my own (nothing fancy), but also use Knight & Hale. Lol, Actually there aren't to many calls I've used that I'm allergic to..
As long as Major Boddicker (spelling??) song dog howler has been out, I haven't tried one!
So, I'm looking forward to trying it out.. I was impressed with it when I watched him blow the howler on a Tom Maranda vid.