of the many popular pro style ranges out there: Viking (the most advertized) Thermador, DCS, and Wolf, and then some that try to look like them, the Wolf has gotten consistently highest marks. Viking supposedly puts out 500 btus more on their burners, but Wolf is easiest to clean and maintain. The double convection fan dual fuel is hard to beat.
If you were giving me one, any of them, I'd happily take it! But when researching and spending my hard saved $$$, I decided to put my order in for the Wolf. (once I thought I really wanted an Aga, and if given one, I would accept, but...)