Since this chat is going around...
Played since OG Xbox & CE, hated the latency of PC CE + XBConnect, absolutely slayed Halo 2 (like 15,000+ games), loved Halo 3 objective (a bit less than I loved Halo 2 bomb/clan objective), Reach I still enjoyed but objective slipped away community wise here and I've enjoyed Halo 4 more and more the longer it's been around, still salty assault and 1 sided games got the axe. So fucking hyped for MCC and H2A.
Campaign:
Halo 2 (for Cairo Station, Delta Halo & Outskirts) > Halo CE > Halo 4 > Halo 3 > ODST > Reach.
Multi:
Halo 2 OBJ > Halo 3 > Halo 4 (current day) > Reach > CE (some elements I rank the best but it's dated for me now) >
Multi Maps:
Halo 2 >>> Halo 3 > Halo 4 DLC = CE > Reach > Halo 4 launch
Gametypes:
H2 1 bomb > H2/3 1 flag > H2/3/Reach 2 flag > H4 ricochet > H4 flag > slayer > action sack & stockpile/race etc.> Zombies >>>>>> Grifball
Customs:
Halo 3 > Halo 2 = Halo 4 > Reach
Future:
Dedis with MCC & Halo 5 is going to rock my X1 for so long. Hopefully coop campaign is worth playing with dedis and no noticeable input latency.
Special Mention:
ODST firefight > Reach firefight.
Halo 4 turbo movement & gunplay > Halo 2 > Halo 3 > CE (for online from Aus, temper your rage at me or about aim assist).
Halo 2 boss battles
Halo 4 CGI, insane to see Halo story at this level.
Halo Reach/ODST live action, crazy good.
Nylund, that is all.