Henry VI isn't quite my favorite -- as anyone who's spoken to me for more than about five minutes knows, that would be Richard II -- but I do have a deep and abiding affection for it. Especially as the best stage production I've ever seen was the RSC's Henry VI/Richard III cycle about four years ago, which I saw on tour in Ann Arbor, when I was an undergrad at Michigan). The RSC residency was among the happiest two weeks of my life (if you sort of mentally snip out the part where I was finishing my BA thesis. Which was on Richard II, in fact, so I had the Shakespeare's Histories Full-Immersion Experience that semester. Never really recovered from it either).

What I think is sort of funny is that you get the whole spiel about how they're little-produced and not really all that good (less so now; their critical stock seems to be rising) and then every ten years or so someone stages a major production and they get rediscovered...