First off I feel the need to tout my own qualifications before I weigh in on this subject. I have played every iteration of Star Wars RPGs since West End Games second edition D6 (for those keeping score at home that is West End Games D6 second and revised edition, Star Wars d20, Star Wars d20 revised, Saga Edition, and I have played both the the beta and beginner game of Fantasy Flight's new Fringe based RPG called Edge of the Empire)
That being said, of all the d20 systems Saga does the best job of achieving some sort of balance. Jedi are way more powerful out the gate (I hate skill focus: use the force) but the official errata did a good job of nerfing some of the force powers (changing the rules for move object was HUGE) Soldiers actually got pretty good towards the mid game levels and scoundrels with the right build could do some damage as well. My biggest issue with Saga is that it still felt like D&D with a palette swap. I ran Saga for a group of friends who are massive D&D 3.5/Pathfinder fans and they of course loved the game. They knew the basics of the rules and knew how to min/max. I do not have the D&D background and have no nostalgic attachment to the d20 rules (in fact the first 2 SW RPGs made under the d20 license turned me off so much I almost passed on Saga) so I was able to be a bit more critical of the game. Number 1, i found the combat to be too tactical. It felt like a mini's combat game with an RPG tacked on. Secondly, even though the balance was better there was still a power gap between Jedi and non-Jedi. Finally i feel the game didnt really capture the swashbuckling feel of the Star Wars films. We ran the game from levels 1 to 8 and dropped when I heard there was a new SW RPG in the works.
My recommendation is to try out the Fantasy Flight Edge of the Empire Beginner Game, it strives to capture the feel of the original trilogy and returns Force Users to their pre-EU power levels.