I have gone away and always come back to Nero. I have Roxio at work and I find the interface better but Nero just does more IMHO.
Gosh is it a pain to install and uninstall. You said a mouthful.
For a quick disk copy I do like Roxio better. For iso and other tasks I will take Nero anyday even with all the pain in da butt install glitches I always get.