Hmm I value your opinion highly but I thought overall that Australia 09 was good quality wise until the 5th set. The 5th really made the level of quality of the whole match dip dramatically. In my opinion of course. If Fed had maintained his previous level up until the 5th I'd have agreed. Serve aside, Fed was really playing amazing until that 5th set. His movement was perhaps the best I've seen from him. Matching Nadal in that area.
2008 had IT in my opinion. The overall factor. So much tension, drama, tennis in that match.
Rafa failing at Wimby and the burden he felt going in that match, like you said his nr.1 goal, back 2 back first player since Borg to win RG-Wim. Federer going for his own records, his H2H with Rafa getting in his head, the devastation at RG against Nadal in the final, the motivation going in this match.
5th set was definitely pretty poor comparing to many of their matches, but I've watched the 2008 final many times, and ironically, set 1 to 4 was somewhat mediocre while the 5th set was actually pretty entertaining. Rafa was just really solid in that match while letting Federer play into his hands.