As my sig would suggest, Joe Calzaghe rides in at no1 on my list, and here's the rest:

1) Joe Calzaghe
2) Jamie Moore
3) Juan Manuel Marquez
4) Enzo Maccarinelli
5) Mark Hobson

I must admit that apart from Marquez, my fave non-brit fighter, I've interviewed the other three on that list, and each of them are absolute gents, so was hard to rank them in order, so I've put them in order of their fighting prowess IMO.