Would be interesting if a player the stature of Djokovic or Murray, who we applaud for playing DC, gets injured because of a suddenly different or poor quality surface. It's too bad there couldn't be two or three weeks set aside for a tennis world cup of sorts, played every two or three years maybe, or even every four years, two years away from Olympics. Then again, DC does seem to have decent momentum in its current format, or maybe it just seems that way here in Canada.
I'm in favour of the status quo; I love the current format. I like the months of anticipation between ties, the best of five match ties and the best of five set matches. Since the calendar is so crowded, I would be in favour of giving the two finalists a bye for the first round of the following year. Playing two or three matches two or three times a year is not such a big commitment. The real problem with the current calendar is that Indian Wells and Miami are given two much importance. I wouldn't make Davis Cup any smaller than it already is.