Which is better? Spray a product on or brush a product on? And, what should the product be made out of for an asphalt driveway?
Are you looking for a sealer ? Topcoating ?
If your driveway is an average size, spraying is not an option.
I've done some black top coating in the past, and I always used a push broom. You need a good push broom and you dump it after the job is finished.
While we are on the subject of re-coating: is your asphalt in good repair? does it have deep/wide cracks, pot holes or areas where it's lifted by tree roots? If you answer yes, re-coating may not help.
I just did my driveway last weekend and used a squeegee to get the sealer spread further, and made a smoother job.