Buses are more comfortable, easier to get on to, wheelchair and buggy friendly. Fares are simpler, network tickets encourage greater use, train+bus and bus+train tickets are readily available. Services are more frequent and reliable, tortuous 'round-the-houses' routes have been replaced by direct routes, bus lanes have speeded up journeys, timetable information is easier to understand and get hold of, more bus shelters, lots more evening and Sunday buses, night buses (some of them frequent, all night services). And car travel is increasingly unattractive, because of congestion and - let's admit it - parking charges.
But to be fair, buses are still used by the kind of people who, well, use buses. Therefore I will stick to my car....................................