For a restoration using the 2006 non-anamorphic DVD (conversion to anamorphic/cleanup/etc.), I recommend Dark_Jedi's upcoming V3 DVDs.
For a restoration using both the 2004 SE and the 2006 DVD (better picture quality), I recommend Adywan's 1980 Empire restoration, and Harmy's upcoming 1983 Jedi restoration.
I don't recommend OCPMovie's Classic Editions. They were made using laserdisc rips before the 2006 DVDs came out, so the footage doesn't match up with the 2004 footage very well, and he didn't do any color correction.