3OTB is great, with Laris being one of my favorites in town. Unless you really want the privacy of the Cupola, i would just reserve a table in one of their restaurants, Laris, Jean Georges, New Heights, or Whampoa Club (my preference in that order though i've never been to Whampoa Club). When you reserve a table just ask for one by the window. Reserve early. You'll get pretty much the same view and save quite a few RMBs. You shouldn't have too much of an issue with the haze, at least i've never had any...
The lights of Lujiazui are nice to see, and as they turn them off at different times depending on the day, you may want to get there no later than 7-8.

edit: and for other western dining on the bund, i used to be fan of M on the Bund, but that's all changed over the past year. Glamour bar for drinks is still ok.