Is this thread still active?
The few magas (Jap-Kor-Chi productions) I have enjoyed lately are:
Kengan Ashura (more gore than martial arts)
Gosu (comedy, historical, fantasy martial arts, less nakama-stuff)
Yongbi (Gosu preguel, more serious)
Karate Shoukoushi Kohinata Minoru (very realistic, more so than Ippo)
Hajime no Ippo (classic boxing, but many aspects very comparable to HSDK)
Blood and Steel (historical, weapons, awesome art)
Honorable Baek Dong Soo (has potential, but more historical than martial arts)
Vagabond (new for me, shows promise)
Breaker was awesome fighting manga, too bad the creators "did the Matsuena" and decided to move to another story before finishing the whole saga.