What's the 4th/5th Gen split these days?

BD crew, SIC posted a few days ago about the announcement that the Makos in Florida will eventually upgrade to the F-35. That list of ANG/AFRC 5th generation units keeps growing and got me curious: what do most aspiring fighter pilots actually want to fly these days?

So, in an ideal world, would you choose a career in 4th/4+ gen (F-15, F-16, F-15EX), or 5th gen (F-22, F-35)?