1 and 2 were pretty bad imo, and they were probably the closest adapatations to the books, so go figure on that one.
For me:
DH 1 > HBP = PoA > DH 2 > GoF > OotP > CoS > PS
DH2's a very fun movie, it just had too many things that annoyed me which put it below HBP and PoA. The first four are what I would call legitimately very, very good movies. GoF and OotP are like "pretty good" tier, and I really struggle to rewatch 1 and 2. That said, I gave all 8 of them a free pass because "it's Harry Potter", so.
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