This is just fun fan ranting, no harm intended, and I will look for Kamui and Subaru's VA soon.
I personaly love Kamui's Anime ver. of TRC....why, you may ask....because in "X The Movie", which brought me to tears with all the death sceens, Kamui was just very....well animated then the "X TV", where as Kamui's eye's would change from gold, blue, brown, purple and all the colors of the rainbow--(Rainbow Bridge T-T.....) but both Ver. of "X" never got the manga's Ver. of Kamui right....In "X the movie" he was just like "I don't care what happens as long as my friends are alive, so I'll just go with the flow...." (That didn't last very long) and the "X TV" he was just to....bratty, and less cuter then his manga ver.
Subaru, on the other hand, I loved him when he was in the TB OVA 1 and 2.....fit well with the Manga Ver. of himself. When Subaru showed up in "X The Movie" I loved him to, even if it was only for 30 sec, and tragic, it was all good, he was animated nicely. In "X TV" Subaru just seemed more, and I very did love his Anime ver. of the TV....I don't know, little bit out going towards the end of the anime....but he too had the same fate with the eye's (No pun intended). They would change from blue, green, gray and other, just like Kamui.
Over all TRC Kamui gives him justic over the other anime he has been in, and the hair color matches who he his. He did have a slight tint of brown in the manga of "X". And TRC Subaru is among my fav. of his animations, be it that he dose have a slight green tint to it, makes the black stand out more.
Edit:
Subaru's voice actor is: Hiro Shimono--RahXephon's Ayato Kamina
Kamui's voice actor is: Mamoru Miyano--Eureka Seven's Moondoggie--Death Notes' Light Yagami--Wolf's Rain's Kiba