Helvetica, everywhere
When Dann DeWitt and I ran Titanium together, we'd often say that we could use no typeface but Helvetica for a year and no one would notice, and that we'd still win awards.
It's a contemporary classic.
Here's a great article that explains why it is, its history, and its cultural context.
Brands that use Helvetica as a primary logo typeface.
Article: The Most Loved Typeface in the World