I enjoyed 24 throughout its run, but I grew somewhat frustrated with the way they raised the stakes each season. Season 1 was personal, with a threat of assassination and a vendetta against Jack. Season 2 was a nuclear bomb. Season 3 was a weaponized virus, etc. If the real USA went through the sorts of threats that Jack seemingly disarmed each year, police state would not begin to cover it.
I read somewhere that the original intention for the series was a comedy - the hi-jinks that occur in the last 24 hours prior to a wedding, I believe it was. That might be interesting.