Magyarok(hungarians):
Cusp of my heart. They could be better in a few way, but well, at least a game where they exist!
UHVs, 1 of them should be changed! To the following: Explore the Atlantic ocean (preferably in spain) and Conquer Augsburg by 955. Maybe its not so widly known, that in the 10th centuries hungarians used to "adventuring" to south and WEST. they reashed even La Corunia! but have been defeated rougly at Augsburg in 955, that was the end point of these adventuring (raiding parties). For this of course you should weaken the city goard os strengthen the huns starting army (i prefer last option). But thats enough about history.
UHV: Luckily you got enough time to prepare. just axpand into the basin asap take Belgrad and if you are good, with that haste you can deal with the venetians too. But do not w8 to much to erase them, 'cause they have the ability to became very strong. if you move one of your initial settler to Bécs (wien) and biuld there a capital, austrians wont be a problem at all! (I know its squatting, but works and helps). the first test is to eliminate the mongol invasion, besides to reach Divine monarchy ASAP! (build wastminster-adopt free rel.) After 1300 when they are finally gone (another addon: in the carpatian basin, mongols appeared 2 times only!!!!!!(1241-42 and ~1260) not continously over 50 years!!!) So after 1300 focus your attention on south! gather your army, rebuild lost improvments and see what ottomans do. help retake Ardianopolis to byzants or to bulgars or if they are both a liability, take it yourself! ASAP If they could set foot in eurpe, you wont be able to kick them out. after this situation is solved somehow, sit back and axpand a bit more, the golden age will help a bit in the stability problems. (won on monarch too)
UP: i do not sense any advantage in it. UU: not bad, but too expensive, huns have a production issue. UB: not bad, hoever, if you aim the uhvs, cant really use its benefirs

Other issue: the names: If I capture Belgrad - regardless where is it - please rename it Nándorfehérvár and nor Macsó (plus: its a name of a territoy, not a city, one os a countless "counties"). An other liability is Belograd (supposed to be: Alba Iulia, couse latin) a totally useless city!!! plus, has no reason to be there! I can tell you a hundred more city to exchange with!
Summary is a nice civ with a "could be hard" challange and a bit confusing uhvs! I rated it 8/10
I'm sorry to forgot mention a few data: I played with 1.0 for a time, and changed to 1.1 a while back

under winXP, BST 3.19