Agreed, Mortis was the worst out of the series. Name any episode that was bad or not worth watching, and it's even better than the Mortis arc, LOL.
S3 had a good start IMO with the Kamino episodes and Supply Lines. Even Sphere of Influence wasn't that bad, as we got a western duel at the end, LOL (though I had MAJOR issues with Greedo in it as he wasn't evfen supposed to be born yet...). But Corruption, the Academy, the Assassin, and Evil Plans were just flat out bombers, I was so glad when Hunt for Ziro somewhat stepped things up. Hunt for Ziro had one of the best fght scenes in the entire series IMO, Cad Bane truly earned the title of the galazy's best bounty hunter for his time. But then, we got the Senate bill episodes, and although they had their good points, weren't all that interesting. Like you said, S3 was truly defined by the Savage Opress arc and beyond, even if Mortis made me want to cry at the fact it was made to begin with. I mean, when you get the Citadel episodes and Savage arc all in one season, it defnitely improves things. I personally don't see why everyone hated the finale so much, but apparently some people do, and I can still respect that, even if I don't agree. I mean, as far as finales go, they defnitely weren't the greatest, but the episodes themselves weren't bad. Anway, sorry for this long, boring rant on S3, I just had to get it off my chest, silly, old me.