For me the main issue with both of them is their almost exclusive use as offices, and mainly for one sector: financial services. London needs more diversity in its high rises, which hopefully the new clusters in Southwark and Vauxhall (and later Paddington and Euston) will provide.
London really lacks urban residential high rises (other than social housing ones that are more suburban than urban, which I see as one of the main reasons they aren't popular). The City actually has one set of great residential high rises in the Barbican, which shows that twentieth century brutalism can produce great desirable architecture. (A look at how unaffordable the flats for sale in the complex gives an idea of how popular it is)
I'm currently near the centre of Philadelphia in Society Hill where the general height of building is similar to much of central London, yet they still have the occasional skyscraper that doesn't damage the street-level historical feel. London could really learn from this - you don't need to pack in Skyscrapers like Manhattan or London's two current clusters, just have the odd one every few blocks and you create high density without the problems of depriving light to the street level. I'd love to see a cluster around the Fitzrovia / Marylebone area as to me this seems like the ideal area to live in London - (urban, every part of the city walkable, great cafes and shops, but not in the central business district), but there must be large gaps between the high rises to keep the character of the streets below.
I do quite like the idea of the several new clusters though in preserving London's feel of being several villages/cities rather than just one. I also like the move of the centre of things to even out the previous North of the Thames centre.
Not sure if Aldgate could be argued to be separate from the city though, walk between it and the city and it feels like the same cluster.
London really lacks urban residential high rises (other than social housing ones that are more suburban than urban, which I see as one of the main reasons they aren't popular). The City actually has one set of great residential high rises in the Barbican, which shows that twentieth century brutalism can produce great desirable architecture. (A look at how unaffordable the flats for sale in the complex gives an idea of how popular it is)
I'm currently near the centre of Philadelphia in Society Hill where the general height of building is similar to much of central London, yet they still have the occasional skyscraper that doesn't damage the street-level historical feel. London could really learn from this - you don't need to pack in Skyscrapers like Manhattan or London's two current clusters, just have the odd one every few blocks and you create high density without the problems of depriving light to the street level. I'd love to see a cluster around the Fitzrovia / Marylebone area as to me this seems like the ideal area to live in London - (urban, every part of the city walkable, great cafes and shops, but not in the central business district), but there must be large gaps between the high rises to keep the character of the streets below.
I do quite like the idea of the several new clusters though in preserving London's feel of being several villages/cities rather than just one. I also like the move of the centre of things to even out the previous North of the Thames centre.
Not sure if Aldgate could be argued to be separate from the city though, walk between it and the city and it feels like the same cluster.