Man, have I been sick this long? Cloud's been digging one huge hole.
Raistlin, if you like changing and developed characters, you can't get more developed than Cloud.
At the beginning, he's really cold. But, gradually, throughout the course of the game, he gets less cold. It's not quite as profound as Squall's change (man, that ending FMV was beautiful), but it's still very noticable. Plus, he doesn't whine or lie at anytime in the game. He couldn't really control what he was saying until he figured out what really happened 5 years ago, which applies to what you call 'lying.'
He usually never whines, unless you want him to. At the Northern Crater, he's not whining to Hojo. He's mortally depressed, and I think anybody would feel that way (I know what being really depressed is like) if you suddenly realised your life didn't make sense, and you were totally confused.