The maps esspecially, everytime i play Reach my eyballs wana implode, sick of the sight of the forunner gray blocks in forgeworld maps.
I also think H3 gameplay is much better and 'feels' like you arnt dying or killing people with random actions all the time, I had way more fun in H3 without all these armour abilities messing up certain situations making wierd things happen, hope you get what im trying to say.
The weapons, vehicles, so yeah the whole game lol
I will still play Reach as its new and a bit different but i think it has been way over hyped and its really no where near as good as H3 imo.