Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
I use Linux in a variety of ways, business, home, hobby. Because of the ways I use Linux, I am glad there are choices in distros. A plethora of options to look through, see what works best for what situation.
I also work with a handful of others who are techs and admins and just helpful folks in general. We have found a somewhat common ground in which distros we use most often and in what environments.
Lately, we have taken to using the following distros for the different purposes in which we use Linux.
Commercial Business Desktop:
I have to say Suse/OpenSuse is the choice I have used and people I work with have chosen when looking for a commercially supported business use desktop. The implementations have altered between the Gnome and KDE usage but overall, Suse has a pretty solid presentation and choice of management tools and options to work with.