As far as I know, the High Speed Rail system is not maglev and modern trains have roughly them same energy efficiency as modern planes.
That's interesting. I'd instinctively presumed that HSR would be much more energy efficient than flying, but the quick research I did indicates you are right. Electric HSR probably has the edge if you are willing to assume hydroelectric generation, but it mostly comes down to projected ridership. A full plane beats and empty train, and vice versa.