Sure, but they earned these status as sues. Each of them had to overcome challenges, even before the game actually started.
Considering how Revan and Meetra's stories ended, I don't really think they count as sues anymore. Sues typically have happy endings where they get everything they started out to get, or something along that line.
Revan ended up a chew toy for the Sith Emperor and the Dread Masters for 300 years, in which time Bastila died never being reunited with her husband. And even after getting freed by the Jedi after those 300 years, Revan started backsliding into
Darth Revan, starting with plotting to defeat the Sith Empire once and for all by literally committing genocide with the mass murder of 98% of the Sith Empire's population. Then he gets his soul torn in half after (nearly) getting killed by the Emperor's Wrath/Darth Nox/Cipher-9/the Grand Champion of the Great Hunt/all four of them, with Darth Revan emerging triumphant and somehow even more insane than before. Because you know, bring about MAD between the Republic and the Empire just so you can give the Sith Emperor a new body that you can hopefully perma-kill totally won't backfire.
...anyone who calls Revan a Gary Stu after all the shit he ended up drowning in doesn't know what they're talking about.
EDIT: If anything, Revan is a tragic hero in the Classical Greek sense. A great man with a sense of destiny, but he reaches too high, and ends up falling low and hard.
EDIT: Even the rest of Revan's legacy only echoes the man's tragic fate. Revan's own family are reduced to just Bastila and Theron, both of whom are barely on speaking terms with each other. Canderous Ordo aka Mandalore the Preserver tried to remake the Mandalorians into something nobler than the galaxy-scouring horde they were under Mandalores the Indomitable and the Ultimate, but as of the Galactic Wars, the last of his followers gets hunted down and killed by the Grand Champion of the Great Hunt. All three of Canderous' successors at the time, Mandalores the Lesser, the Vindicated, and the Avenger? All three of them were Imperial allies.
Hell, there's even that one flashpoint, the Black Talon. The final boss is a padawan by the name of Yadira Ban, implicitly the descendant of the Dark Jedi Yuthura Ban, who Revan redeemed during the Jedi Civil War. And she ends up getting left a cooling corpse on the Brentaal Star's deck by the Imperial PCs.