mr.OpenRuy the Rossi is more positional and can transpose to the moscow I think but The grand prix I think poses white seripus problem and is very dangerous up to a 2200 level I think. Ive seen carlsen play the main line agaisnt jobava in bullet and mate him in 20 moves using all the grand prix ideas its on the gotham chanel, I dont like him but ome of the content is good. Why do you think the Rossi is better? its a bit more complicated is it not?
then compare it to this
Well, I don't really know what to say, then. The Rossolimo and the Moscow/Canal Attack are interesting lines, I guess, but I can't really give any more recommendations.
If you play Rossolimo and Moscow then opponent can still play the Nimzowitsch Sicilian against you so none of what you're saying makes any sense.
Fair, but playing the Rossolimo and the Moscow limit it down to the mainlines of the opening, the Nimzowitsch, the Hyper-Accelerated Dragon and a few other minor sidelines (plus the rossolimo and the Moscow weren’t even my main recommendations)
you act like the rossolimo is one thing and everything else is giant
also, wouldnt say all of e6 sicilians are minor sidelines