Depends on how good the player you are playing is and how good you are.
You can kick at the 8, it's in a big ball position so if you hit it almost anywhere it should go in off the other ball.
You can play his hanging ball off the 8, then go up table where he has a tough shot on the stripe in the middle.
You can thin the 8 ball to kick it off the rail an inch to block the pocket and leave the same position up the table in the middle of the opposite rail.
If I was shooting it, I'd kick at the 8 to try to make it. Even if you miss the shot or it hangs up, you could have a chance to get lucky and not leave him a shot.
The safe is probably harder to execute at the right speed, but if you bring the cueball and 8 ball to the right spots he will have a very very tough time with winning. If the 8 is near that corner pocket, the open stripe can't go there, if you leave the cueball on the other side of the ball, he will need to bank a shot or try a safe with the 8 in front of the pocket.