Depends on how you like to drive. Most skyline run AWD but Supras are RWD. So If you like driving fast all year round get a skyline. If you like the way a RWD car drives or you like drifting, get a RWD Skyline or a supra. Both can be made to put out large horsepower but skyline have more high-speed stability. If you live in the U.S. supras are a whole lot easier to come by but I just like the design of an R34.