We always use RTO autobrakes, you can't beat RTO mode in terms of reaction time and performance. For landing on long runways I sometimes keep them off, on short rwy's we use them for minimum stop distance. That means selected on MAX so that it starts braking right after touchdown and then as soon as possible we override them manually for maximum deceleration.
For reference we recently used MAX autobraking up until full stop on a 1390 mtr runway (B737-700). No control problems whatsoever but very uncomfortable....