I've seen both. Something Rotten was a blast and I would recommend it. Waitress was just meh for me, although Jessie Meuller is awesome. She's the reason why I didn't leave at intermission, but I was very tempted.
I thought "Something Rotten" was a lot of fun and entertaining. I saw it with the original cast and they were fantastic. I have not seen "Waitress" but thought I would recommend "Something Rotten" .
i second the last posting, i saw SOMETHING ROTTEN and thought is was the most adult fun i have had at a Broadway musical in years...on the same trip i saw BOOK OF MORMAN and thought ROTTEN made me laugh more and cheer more and i really liked BOM...and now with ADAM PASCAL there is not a reason to miss this musical!...I am seeing it again when i return to NYC next week...:)