Playing 4 handed

Hero is BB with Ac Tc 4s Js 

BTN is playing 30/24/12 over 1k hands, good regular who plays not very many tables and fights over pots, doesnt let go easily, knows when to stab or raise, knows when to realize eq etc. No particular history though.

BTN opens, hero 3bets from BB

flop: (pot 20bb) 3d 7s Ts

What is your plan on this flop considering Hero stats are 26/20/8  and villain knows that.

If you check what is your intention and why?

If you bet what is your intention and why? What is your plan on the turn when called?

Thanks.