Finalizing Paris restaurants... and a couple of other random questions

Hi, all,

I've read lots of past posts, but I still have a few questions about our list of restaurants for an upcoming trip to Paris. My husband and I will be there mid-January. Just for some background, we live in NY. My husband used to be a chef, and now he's in the wine business (hence the trip). We've been to Paris a few times but not recently. We love to eat, and we love to eat in France! The few mediocre experiences we've had were at more modern-style places, so we tend to stick with more traditional (which is also harder to come by in NY), but we really are adventurous eaters. And a wine list with interesting selections that doesn't gouge is a big plus.

Here's what I have planned so far:

Friday: Chez Dumonet
Saturday: Les Papilles
Sunday: L'Ami Louis
Monday: Pierre Gagnaire/L'Arpege

Questions:
(1) Should I replace one of the above with Spring? I couldn't find many reports on CH.

(2) Would L'Ami Jean be better to put into the mix, i.e. is it more 'different' than Dumonet, Papilles, and Ami Louis?

(3) My husband loves Robuchon, and when he read that Robuchon ate at Le Baratin, he wanted to go. Is it not worth a trip when we aren't in town very long? (We're staying in the 6 arr.)

(3) How does the wine list at Pierre Gagnaire compare to L'Arpege in terms of mark-up and selection on the low end (100-130 euro)? At Le Meurice, the markup was crazy, and there was not much choice around 100 euro. It's a bummer to drink village wine with meals like that.... (I understand the food experiences will be different between the two places.)

(4) Different topic: chocolates. I have always gone to Michel Chaudun for chocolates, after trying to eat my way through Patricia Well's food guide. I was wondering what are favorites of some CHers?

(5) Just a question out of curiosity: I ate at Paul Bert some years ago and really enjoyed it. But from reading CH, I decided to nix it. Was it more consistent at one point? Or is the inconsistency in reviews more about point-of-view?

Thanks in advance. And happy holidays!