Mine is All the Way Up.
The Celtics aren't winning a championship but finally this team has some swag, style, and finesse mixed in with the grit and toughness old school fans like to see. The whole PP-KG-RA era was other people calling the Celtics old and tired, but now they've got a couple of young stars and potentially a couple of younger stars in the making.
Even if Irving leaves after 2 years, it's all good. I'm sure it'll be fun while it lasts.