I guess you'll have to figure out what exactly you might want, but here's what I did for comparison.
I ran a 15A circuit to two duplex outlets positioned under the seating. At most, I'll have three power recliners, and often they can be daisy chained or run off extension cords, but I figured "why not?" The fourth is available for a laptop or cellphone charger or vacuum cleaner (though none of that will be convenient under the seats). That same 15A circuit powers two more duplex outlets in the face of the riser, directly behind the front row seats, with the same intentions there. I also ran a 20A circuit to the corners of the room along with a cat cable and some coax to power and feed signal to subs. I built passive subs for those locations, but you never know. Now I can put lamps there or something if I need (I won't, but whatever) - or vacuum cleaner.