Well, as you can tell from my name, I don't think you can go wrong with any Cirque du Soleil show! If you are a fan of the Beatles I think you will really enjoy Love. I'm not a big Beatles fan. sorry, but I really enjoyed the visuals they put together for the show.
My favorite show is Mystere. I can go on all day about Mystere. It is a classic Cirque show with many wonderful acrobats and performers. The costumes, the music all wonderful! My husbands favorite is O, it is very expensive and you need to get your tickets three months in advance to get good seats! Zumanity is the adults only show and it is very racy. I haven't seen it for awhile and know it has changed some. KA is more of a martial arts show and is known for it's amazing stage that defies gravity, if you will, but it's not a fav of mine.
That's the great thing about Las Vegas, no matter what your tastes or onterests you will find something of interest to you. I always check to see who's playing when I'll be in town. You can catch some great traveling shows and concerts there too. I know people who love Blue Man and others who enjoy the more classics like Follies. I enjoyed Wayne Brady a lot, but I'm also a fan of him already.
I've never seen Sopranos at all. I don't have HBO. I'd suggest looking at whats available before you go to see what might interest you. Of course if you get there and want to do something you can go down to the halfprice ticket booths and just see whats available for that night.
Have a a great trip!!