romanian gangs are weak generally speaking, even in romania are not so strong, aside a few gypsy clans bulgarians are powerful in their country, but not so much in general, and gypsies anyway are strong even there albanian and serbian oc are by far the strongest balkan criminal group (not only gypsies, in general)
Albanian are top, and when u say Serbian , you must consider serbian/montenegrian. Because clans from montenegro are now more powerful than serbian,but they are all working together.
