Hello!
IMO the best 1/72 Skyhawks come from Fujimi. The new Airfix is also very good, but those Fujimis are gems. They are built up modular, so you have early/late back sections, one/two seater fronts, more than one style of engine intakes and so on. It's the only 1/72 scooter I know of, where the front wheel is molded separately from the strut. The problem is the Fujimis are somewhat hard to get now.
Good hunting and have a nice day
Paweł