The fact about Take That is that they have returned with an excellent single, and what appears to be a popular album.
The Spice Girls may have a harder timer of it - they were very much of their time, and the ageing process is something that can be forgiven ina boy band, less so in a girl group.
Of course there is better music out there, and worse as well - that's what makes popular music so fascinating. If you don't like the media attention pop bands get, sidestep it - it's not hard to do.