I firmly believe with all honesty that Obi-Wan is the only character enhanced by the Prequel trilogy.  Most of that is from the performance by Ewen McGregor but also because his character got a good chunk of history that didn't violate most of what we already knew of him.  R2, Yoda, and even Darth Vader couldn't escape that unfortunate turn of events somehow, but Obi-Wan really shined and honestly there are many moments I watched in the PT that I only watched for Obi-Wan. 

Initially I had a bunch of Obi-Wan's because he had a bunch of figures I liked, however reader's got very confused at the fact I used the clone wars one as one of my stars.  So recently I had Thanos use the Infinity Gauntlet to get rid of all the extras for the "Good Guys" but the bag guys still have multiples where applicable.   I may end up having Obi-Wan changing outfits from time to time though.