I get what you are saying John, but I think most people are going to go with screen accuracy on scale. He is almost a head shorter than Solo
Seconded from me...
Luke IS short, so I'm a particular collector in that regard. I like short characters to be short, tall characters to be tall, and average ones to be the in-between. Army builders and generic guys like that should fit that mid-range (Harrison Ford/Han Solo is pretty average height) with Leia, Luke, and many others just being short guys and so I'm always geeked when Hasbro gets it right on a figure. ANH Luke is especially short and slight looking in build too... By ESB, Mark Hammill was filling out a little more in bulk but not height.
Hasbro GENERALLY has done well with scale in the last several years... The Death Star Trooper's goofy tall, as are some other characters that seem off for one reason or another, but still they've done pretty well, especially with the main guys.
One of the figures I can't get an idea for height on is Biggs... I've seen pictures of him with Luke that make the two actors seem almost equally short, which would make his TIE Pilot figure accurate and his X-Wing Pilot inaccurate (and I believe his cutscene figure as well). *shrugs* Just one of those things I can't seem to figure out, as I can't find Garrick Hagon's height on IMDB or anywhere else.