Stall speed

For those that know got a question somewhat related.

Say you shift at 6,400 rpm peak hp is at 5,800 rpm but you got a long flat torque curve of at least 450 lbs-ft from 3,500-4,500 rpms but technically peaks 455 lbs-ft at 3,500 rpm.

Wouldn't something around a 4,500 rpm stall generally/potentially be better since it's practically the same the same torque but obviously more power to launch especially if traction is no problem ?