I don't think Yamato 2199 has a genuine love triangle. There are gestures to one between Kodai, Yuki, and Akira, but Akira's feelings don't really go anywhere and it's pretty much just a relationship between Kodai and Yuki.
Probably right about that, it is more about the perception as far as the actual love triangle goes, still could do with out the worn out anime romance tropes.