I like Panini Brazil because they put color ilustrations at the back of the cover of their normal mangas, all of their current mangas have it's cover filled with a color ilustration or the original "turned down page" (I don't know if this is the correct term, it's the word I found at my Longman Dictionary).
These are pictures I took from my Abara, they are made in oriental format but its size is bigger than the japanese (13,7x20cm), I love it because I can appreciate all the details of the manga's art. Some of their mangas are published on 13cmx18cm, I think it's the original size but I'm not sure.
This is the colored art on the back of Sunadokei cover, unfortunately the picture is the same.
In Brazil there's only two other big publishers of manga, Conrad (it's broken and was recently sold for a bigger publisher) and JBC. Only Conrad used to publish deluxe editions (probably the reason of its bankrupt) as usual, Conrad was the only who published mangas with their color pages, but I think Panini is doing a pretty good job, mainly because they keep the lowest price of mangas in Brazil.