Obviously being from the welsh valleys myself, i would be biased if i say i love ''the welsh accent'' :-). (i do) Speaking to people who have heard my accent, they sometimes comment saying, it sounds has if we are ''singing'' some say we speak to quick, but the majority say it is...
but somehow my opinion changed, and I really like welsh accents!
I used to like the accent, that you normally call the "British accent", a lot better.. But the welsh accent has so much more personality to it somehow.
Yet, I love almost any accent :)