It depends whether or not you like cities or the country. The UK is pretty small but the roads can get quite congested at times.
The Cotswolds are very beautiful as is Oxford which is close by and steeped in history. Winchester is another lovely old city and will lead you own to the South coast if you like.
The lake district is beautiful too.
So much to choose from. The good thing about the country being small is if you don't like an area you cam move on pretty quickly to somewhere you prefer.