[flaccideagle]

So what about Luke Skywalker from ANH?

I think the best one out there is the Resurgence of the Jedi Battlepack.

Resurgence Of The Jedi - LC - Battle Packs Research Droids Reviews - JediTempleArchives.com

This set is great for a few reasons:
-the Luke is great
-the Obi-Wan is great
-the R2-D2 is great

the C-3p0 is not so great. But the other three are currently "best of" for those characters (old ben, luke ANH, R2-D2)

If you just want the Luke, you can find it in the Blu-Ray pack from last year.
Episode IV: A New Hope - SW [SOTDS] - Blu-ray Release Commemorative Figure & Mini-Poster Collection Research Droids Reviews - JediTempleArchives.com

...it also comes with the same Old Ben as well as a really good R2-D2 (this time with vac dome and a movable scope).

Some folks have taken the Luke and customized it with TVC Death Star Luke to make an "ultimate luke" with soft goods waist so he can sit better. Haven't done it myself but it does look really good when the Resurgence belt is cut out properly and the soft goods skirt is added.

Also worth noting, you can get a nice set of obi-wan's chest, a poncho, and the floppy hat with the TSC 2006 SAGA 036 Luke. Just add the rifle from the latest Landspeeder and you have a perfect ANH Luke.