Chaining pull-up vs push-pull configuration
In the first image, one or both conduction mosfets will probably blow because it draws too much current. The current is defined by the Rdson's of both conduction mosfets.

The resistor in the second image will only affect the transient time if the output is loaded with a capacitance which is almost always the case. E.g. the gate capacitance of a (not drawn) mosfet that 'senses' the output.