Each of those use different mechanics entirely. Vampire: the Masquerade and Legend of the Five Rings are more complex, while Monsterhearts is mechanically simple. Beginners can pick the first two up, but yeah it'd be harder than D&D.
Monsterhearts uses a game system referred to as 'Powered by the Apocalypse', which really loves to throw social gaming at you. That system can have RPGs that range as widely as Monsterhearts, which I already mentioned, to Night Witches, where you play bomber pilots in the all female
588th Night Bomber Regiment, fighting the Germans by night and misogynistic Soviet authorities by day, to Masks, a Superhero Drama, Urban Shadows, an urban fantasy game, to one of my other favourites, Blades in the Dark, where you play as a crew of thieves and robbers in a Dishonoured-esque city, planning heists and dealing with other gangs.