Hi Dunc23,
Welcome to Vapor Talk!
There are a lot of great people on this forum, who I'm sure can help you. I have never used the Azeroth so I can't comment if it's better or not. I do however love my Avocado 24 and use only single coils. I like using both hand wrapped and premade coils. I prefer 0.3ohm stainless steel coils for flavor and my juice is a 70vg/30pg ratio. I get both great flavored vapor and good clouds though I don't "cloud chase". I have run 2 coils but find that it wasn't any better and in fact I didn't like it that much. Twisted coils and claptons do offer different options but I haven't used them too much so I can't really give you an informed opinion sorry.
For your wraps and such, I think the Steam Engine tool will help you determine what will work best for you.
I'm sure that some one will chime in that knows a lot more than I do and you'll get great advice.