Zelandakh, on 2013-December-02, 10:39, said:
South's 2♥ rebid does not show extra values so let's get that out of the way up front. If North is going to bid over 3♦ then I think 3♥ is the better choice. Whether to bid or not seems fairly close - thinking about it in terms of LoTTy (everyone's favourite on BBF) we have an 8 card fit, +1 for double fit, -1 for bad shape and they are likely to have a 9 card fit or 2 8-card fits for a total count of 17. So as usual for red versus white, we want to bid if we are making and defend if we are down. The problem here is that partner might have 5 hearts, and will often have 5-5 shape here. That makes bidding more attractive but again only 3♥, not 3♠. If South had doubled 2♦ instead then West has an easier time passing. So a little blame to both but not for the reasons being given.
Interesting, I thought south should have just a little more to bid freely in this situation. Although I do agree that if north bids at the three level, hearts is better.
Life is long and beautiful, if bad things happen, good things will follow.
-gwnn