Razor is right; the Phantom is stable as hell on approach if you set things up far enough in advance. It also has super strong main gear. I must admit, though - I have had the nose gear fail on me before. Hell, even during take off, if you do not rotate quickly enough it rips off. That is a hairy situation to find yourself in, let me tell you... I actually find carrier landings easier in the Lead Sled than with the Cougar trainer... I always over cook the landing speed and rip off the tail... With the phantom I have a tendency to do a couple of bolters then rip off the RHS tailplane on the island...
I don't have any MiG-19 experience, short of a quick test flight once I installed it, but I guess the lighter gear and slow speed handling characteristics would make it a tough one to land.
The secret is pretty much as Razor says, though for any jet - just set her up on the glide path from way away out and try to control the speed of descent.
I love the implementation of jets into IL-2. It really gives you a completely different experience. Not just landing them, either - combat completely changes and you have to adapt to suit. I have gone through phases where I only flew the jets and was getting quite good at pancaking without breaking them - then I stopped and played around with 1916. After a while you can't fly jets worth a crap again as you have adjusted in your head to the slower speed and handling of the biplanes...
God I love this game