I have played all of those from when it came out till now. I had not played the newer version of swg in a long time, but found a place to play recently. About months ago I played on the old swg server. Btw old is pre cu and new is the combat level version. I also just paid a sub to Swtor.
I use to think pre cu was the best, but I think I had rose colored glasses on lol. Since I started the new swg again, and got to compare them side by side, vs the years inbetween the live versions. I think new swg is the better of the 3.
Esp since swtor main feature I played for doesn't even work any more due to lack of players, which is the low lvl pvp matches. The wait time on even hawk for me was huge. I played around 8 hours total, I got 2 pvp games. So that killed it for me.
Shame ea and Lucas didn't just take the new swg and give it better graphics, animations, and voice, because he new swg is way better. It has 10 times better crafting, space flight and combat, gear, classes, expertise points, housing, cities, environment, mounts, and did I say crafting lol. The only thing swtor does better is graphics animations and vocie.
Swg old doesn't do anything better. It has worse everything, questing, horrid combat, clunky ui, worse animations due to combat, and really really bad balance between characters.
Well glad I can still play new age, because swtor with its gambling boxes, horrid space content, horrid crafting , and now no pvp due to lack of players is just garbage to me. Swg old was not a improvement over the new version, they did a really good job updating swg at the end