We saw the early (7pm) performance of _Spamalot_ and the late (10pm) performance of Cirque de Soleil's _Love_.
_Spamalot_ was a hoot. Recapitulations of classic Python bits (including a couple that weren't part of _Monty Python and the Holy Grail_) and some parody of musical theatre/Broadway/Vegas.
_Love_ has Beatles music along with Cirque staging and acrobatics - triple threat! There's an awful lot going on... I imagine some folks are very keen on seeing it multiple times.
One good thing about this trip was picking the dates very early. That meant we could buy tickets for shows the day they went on sale. Made for getting very good seats, which is a nice bonus.