Spoilers and full reverser are the same as auto brakes 2.75 (+/-) at touchdown. At approx 90 kts the effectiveness has reduced to approx autobrakes 2. You can check that as the speed decreasing below 90-100 kts, with full reverse, you'll start to feel the brakes being applied if auto brakes 2 was selected.
Aero braking is not going to give you the same effect as auto brakes 2.75 (full reverse and spoilers). And the additional risk is slamming the nose wheel on the ground. That doesn't always end well.