If you want big, bright musical comedy, go for Tootsie! I saw it is it's pre-Broadway run in Chicago and loved it.. (even bought a t-shirt!). I do fear that it may get a little lost in the Marquis.. but it is still worth it for Santino Fontana's brilliant performance alone.. Also I'm always a sucker for a David Yazbeck score!
Ain't Too Proud would be up the line of Beautiful, Motown, Jersey Boys, etc.. Not my cup of tea, but if you do enjoy the Bio-Musical genre, I have heard nothing but positive word of mouth.
Beetlejuice received some mixed notices in DC and (admittedly), i am not a fan of the movie... so its much lower on my must-see list..