Siddon I like what you had to say, so I hope you read my comments as constructive.
My preference would be
1. Noir - I actually think this is the easiest and best of the options. You have actual noir and neo noir lists and it's a big enough pool to get a quality list. Also the BFI list on site is horrible, the worst one of all the lists.
I was thinking if we end up doing a Noir countdown I would then host 3 concurrent Noir HoFs: Proto Noir HoF, Classic Noir HoF & Neo Noir...That should give some good exposure. You're right the BFI Noir list is horrible.
. 2 War - I'm a little worried about it being WWII and Vietnam centric, but once again you can get a good list.
It would be WWII & Vietnam centric but once again I was thinking of a series of HoFs for the major war conflicts that would hopefully expand people's exposure to other war films besides WWII & Vietnam.
3. Comedy On one hand it's clearly needed...how many comedies made the 00's list. On the other hand it's such a huge field of noms that it would be better to do a 50 per decade thing.
Maybe someday we could do a second type of MoFo countdowns where they are more defined like you suggested by decade.
4. Musical - It would be fine, I don't know how popular musicals are on the site really, we already did the esoteric Western list. I'd like to see a hall of fame to gage interest.
There has been some Music based HoFs in the past, I believe they were all popular but then again how many people usually join an HoF, no more than a dozen or so.
5. Fantasy - to big to nebulous now if you want to do franchises that would be interesting it would honestly be like doing a list of "drama".
Drama would be interesting but hard to define, I mean isn't LOTR also drama.
I like to see the next countdown not look a whole lot like the one we just did.