China rates its J-15 equal to the Hornet, lower than the Super Hornet...

via IDRW.org

In terms of its performance compared to other carrier-based aircraft in service around the world, Yin Zhuo said that the J-15 capabilities are high. For instance, it reaches a similar level to the U.S. F/A-18C/D ”Super Hornet”.
While overall it is slightly inferior to the F/A-18E/F, it has better performance in air combat. Its ability to attack land and sea-based targets is lower than the F/A-18E/F, but it is at least equal to, and perhaps slightly better than, India’s Mig-29K.

Of course he doesn't have any vision (hopefully) on classified system either on the Super Hornet or in development for it.

I'd be interested in how they stack up their other systems against ours.  The Type 52D, the Type 99 MBT and their other armored, anti-air systems etc...