Personally I think it would have been less interesting. My favorite part of Boston is that it is full of juxtapositions between the old and the new. The key is really to stop demolishing the historic stuff in order to put the taller buildings. That's why I think allowing additional height in exchange for facadectomies is a win-win for the city and the developers.Sometimes I wonder how it would have been if boston went the paris la defense route and kept its historic core in tact and built its high rise downtown in like northpoint and cambridge or something.
La Defense is ugly and much of Paris looks monotonous from pictures. I have been to Canary Wharf and think it's probably a similar feel to La Defense, banal and uninspiring. I prefer seeing skyscrapers seamlessly integrated into existing cityscapes, as long as they're not replacing the historical stock!