Ben Affleck scored some major Dad Points Thursday night ... not only did he snag he and his kid some better seats than Kamala Harris for the Lakers game -- he also got Steph Curry to swing by for a meet-and-greet!

Ben and little Samuel Garner Affleck scored some courtside chairs for L.A.'s home tilt vs. the Golden State Warriors ... and the two seemed to have a blast as Curry and LeBron James duked it out on the floor.

The guys were seen cheering often ... with the young Affleck even animatedly celebrating a few 3-pointers in his James jersey.

Their night was a fairly stark contrast to Harris' ... as she and her hubby, Doug Emhoff, were seated some 50-or-so rows back with a bunch of normies.

Harris didn't seem to mind the view too much, though -- as she flashed a few grins while watching her beloved Warriors play. Elsewhere in the arena, Olivia Wilde and Zach Galifianakis took in the action too.

Los Angeles ended up winning the tilt, 120-112 ... but Curry hung around for a bit to chop it up with the Afflecks -- clearly giving Ben an edge in any sort of race for Father of the Year.

The "Gone Girl" star hasn't been loving cameras too much recently -- in fact, TMZ reported just this week he's looking to move soon to avoid paps -- but something tells us he didn't mind the lenses being on him for that postgame interaction.