reach was the best so far, although in all the other games the a.i.s were much better shots, and actually rushed into battle, and didnt hide from the covenant onslaught. the only true "spartans" on reach were jorge and noble six, red and echo teams. the ODSTs were much better shots than jun ever will be no matter what difficulty you are in, because as we all know, ODSTs ftw, "we always get the job done- no surrender, no defeat, not today, not ever, now let's drop into hell ladies!"
i personally liked ODST especially because it was a break from master pansy's story - no offense, but master chief really was a pansy, even for a spartan. the only thing tht could have been better about odst is that i wish they had more allies in new mombasa roaming the streets at noght, and that every building was inspectable, like you can go in, and find a whole bunch of stuff, and that you could do all the things a real odst could do. if they had a matchmaking lobby for odst, that would have been beast, and every time you spawn, you could drop into hell in an actual intereactive drop pod, and you could choose where you land and what not, you know, just throwin a few ideas out there... i mean if they cn do it in a crappy demo for section 8, they can do it for an awesome fully functioning game for halo odst 2. (just a bone i wanna throw out there to the guys we passed the torch onto, 343 industries. keep the halo comin, we need more ODST, and will not settle for less.)