Problem with a newer F-14 is the F/A-18 "Hornet" and the F/A-18G "Growler" are already in wide use, and perform the same missions. I agree though, the F-14 was and still is, a very cool bird. And it deserves some of the credit it's grabbed over the years, such as Tom Cruise's movie "Top Gun".
As for a ramp, that could solve fighter launches, but smaller, prop driven birds that can launch of Nimitz-class carriers couldn't just ramp off a smaller craft.
I stand by what I said originally, we need a mixture since both styles of vessel can fulfill vital roles in conflicts. Also, with smaller carriers it allows the larger vessels to be held back, like everyone else has said, the smaller carrier doesnt require as much monetary support, but, it also cant fulfill all the same missions as a super-carrier. Also, they'd be easier to destroy, and they could reduce the effectiveness of our Navy if the Super-carrier was cut from service. America rules the oceans, but remember, so did the British back during the time of the revolutionary war and the War of 1812, and now they dont. The same thing can happen to the USN if we're not careful.