When the pilot film for The Clone Wars was released, it was the first time we ever get to see Rotta. Since Rotta has never been heard of (or even thought of until then) and Jabba has been pretty much the only one we all knew, we don't know what happens to Rotta as of yet.
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Jabba the Hutt lives in his palace on The Dune Sea Of TatoonieConstructed in 700 BBY
Jabba the Hutt was one of the last remaining Hutts in power. He ruled over the Tatooine sector of the galaxy until his death, which enraged the remaining Hutts.
Tatooine
Because Han Solo did business with Jabba the Hutt
Personally, I don't think either of them are more famous than the other