I prefer the feel of the Republic overall despite to obvious need to make it seem less 'good' by adding endless corrupt bureaucracy type storylines (seriously too many of the same themed quests).
Sadly game balance wise it is clear that they didn't get the same attention the Imperials did. More class abilities bugged, delays on abilities and generally seemingly less effort put into story, dialogue and gear design.
The glaring imbalances and lack of testing for Republic abilities shows a clear lack of interest on behalf of the class balance team. How do bugs like inconsistent cooldowns between mirror classes on each faction go live? Its nice that damage matches animations but why do several abilities on the Republic side suffer from inequality due to this? This makes a huge difference in pvp.
Sadly, and much more depressingly, why have Bioware remained quiet on these issues, especially those of ability balance due to animations?