HI S - it all starts with the best ingredients, and the mass produced stuff can not match a true artisan product no matter what they spend on advertising to to try and suggest otherwise.
There are stacks of good butter, cream, cheese and all manner of dairy producers around the UK selling through farmers' markets and farm shops as well as at good delis.
The winner of the best butter in the country on a regular basis is Brenda Leddy with a herd of Jersey cattle in the Scottish Borders, at Stichill, near Kelso.
Her butter can be ordered - along with a Kelsae Cheese and double cream - in a pack from Caley Co. (Caledonian Conniseur) at :
http://www.caleyco.com/item.asp?n=CALY232&f=1 and I can not recommend Brendas produce highly enough.
She personaly has input to all the goods - she makes a superb lemon curd by the way - and if you want a taste of real butter for the table, do order the pack... contact her direct and I'm sure she can arrange delivery of a pack direct if you fancy that. she also makes clotted cream, flavoured dips, pannacotta etc etc....! I won't pass on a tel no on this site, but just do a search on Stichill Jersey Herd and her details will come up...
There are other regional producers you can find near to you, but if its the best flavour you want - sorry, but leave the mass produced stuff alone.....