Well, there was a little event we call 9-11 between Clintoon and W, so it's hard to compare anything between the two, except to say that the Clintons helped bring on the attack.
As for the CinC influencing who enlists and when, I don't know? I enlisted during the JFK years and one of my sons enlisted late in the W41 years. I don't believe their politics influenced either of us. It was relatively peaceful in 61 and 92, put for those enlisting in the late 60s or after 9-11 - the world changed a bit.
I don't think who is CIC matters much. They couldn't meet recruitment goals in the Clinton years and aren't even coming close to meeting those goals now. Kids now want to go to college and then find a job. They sure as hell don't want to put theirselves in harm's way. The CIC doesn't matter for recruiting as few kids can even name the VP, much less the president