In defense of ShinSte
WARNING: Insane biased opinion + Spoilers = do not continue to the end if it starts to offend you. Capiche?

There's a reasonably divided fandom on who Shinn really loves, Stellar or Lunamaria Hawke, his comrade-turned-snog-partner-in-one-night. Honestly, I think the whole Shinn x Luna thing was some pretty cracked-up shit Fukuda randomly decided to come up with one night when he was under the influence of hard-core pot. XD
Okay, I admit: it was never revealed (directly) whether Shinn felt the same way about Stellar (Stellar told Shinn she loved him before she died). It is possible that Shinn only thought of Stellar as a filler-Mayu. But honestly? Who would treat a sister in that way (shall I mention the random caresses and promises and nekkid-floating-around-random-space moments)? Moreover, I think that despite the lack of a kiss, such as the one he sorta-almost shared with Luna, the connection between him and Stellar was stronger emotionally. I guess this is partly because I believe that the most important things in life go beyond the physical bounds. So what if they didn't kiss? The way Shinn was so determined to protect Stellar, the way he cared about her and looked at her, to the point that he sacrificed his entire pilot career (and life, at that) by delivering Stellar to the enemy (Neo Lorrnoke) ala Kira-and-Lacus-in-Gundam-SEED, is totally different from what happened between him and Luna.
Don't get me wrong; I like Lunamaria a lot, and I might have actually liked the pairing if Fukuda didn't fuck it up. But honestly. Luna: "Shit Meyrin=dead wtf alfjdk skd f!!" Shinn: "OMG I'm wangsty" Luna: *pouncelolz* HELLO?! What the hell?! WHERE IS THE DEVELOPMENT?! It wasn't even remotely implied that Luna and Shinn had this thing for each other at the beginning of the series (and even in the opening and ending themes). The whole thing was just so... random. O_o
Plus it should be noted that some of the canon pairings in the Gundam SEED installments are those that don't have much kissing involved (i.e.: Kira and Lacus). Yeah, I know that's a lame-ass defense. So screw me. XD
Oh, and in the 2006 (I think) GSD calendar, the caption next to the pic of Shinn and Stellar (the main image I have on the third skin of this site) says "The Lovers". That, and it's Stellar who knocks an almost-dead-in-Destiny-Gundam Shinn back to consciousness and tells him that they'll meet again someday. XD
Or it could be just that I'm a raving lunatic and I love my wangst, so I love how ShinSte made me cry like shit and made me depressed for several days. XD But believe me, I do mean the rest of the things I said in this essay/rant. So, uh, ShinSte forever (and damn Fukuda for fucking up an otherwise plausible Shinn/Luna pairing)~! :D