As it stands now I think:
Dirtbag > Ripper > Ratbag
Dirtbag can hit confirm F1 (and B1) vs every character and acid makes it so F12 is more of a risk, making it more versatile than the others. Has ok damage mid screen, easiest to set up throw KBs, very good corner game, good anti zoning.
Ripper is good but has the same issues he's had all the time. He has mids now which is cool but none that need to be respected that much considering F1 and B1 don't give full combos. So you can still crouch and jump for days.
Ratbag has the best combos but damage isn't that great considering how much you lose.
HOWEVER, I would say easiest to play (and maybe win) goes:
Ratbag > Ripper > Dirtbag
Dirtbag is annoying to set up, requires some patience since it has the lowest combo damage and weird ways of getting it. Ripper is pretty easy but a high command grab for a pretty low reward requires a lot of reads. Dirtbag plays the most "normal". String into launching special into oki, repeat.