Pretty straight forward, which enemy force do you hate the most? Which do you think is the easiest? Feel free to list your reasoning as well. For the sake of this discussion, assume that you're playing on Gold difficulty.
For me it goes Reaper > Geth > Cerberus.
Cerberus is pretty straightforward. Really the only thing you have to worry about are the Phantoms and sometimes the Engineers can be pretty sneaky with their turret placements...i.e. placing them at random spots on the map that you and your team aren't even near but when you find yourself having to go down there (i.e. to get an object) WHOOOOOOOOA! there's a frickin' turret.
Geth are the hardy middle-of-the-ground troopers. They only have 1 "true" heavy unit, that being the Prime which I'd say is a lot more dangerous than an Atlas. But they've got a ton of specialized units. The Hunters, in particular, are a HUGE pain in the ass. Their pyros can be pretty sneaky when they flank you, and the rocket-troopers are essentially their snipers but still, not that dangerous if you're paying attention and have a good team.
Which brings us to the Reapers, those god damn bastards. As representatives of the singleplayer's primary antagonists, I think they were designed to be the most difficult. Their banshees are frickin' nuts, their marauders are frickin nuts, and the Reaper equivalent of a sniper class is the Ravager...something that comes equipped with semi-automatic rocket launcher that can easily fuck you up if you don't see the Ravager first. All in all there's nothing that isn't a complete pain in the ass for the Reapers. Cannibals chuck grenades, husks apparently glitch through attacks and grab you anyways, and both of them get those armored barnacles that make it so you HAVE to get a headshot to kill'em.
Which is why I say the difficulty goes Reaper > Geth > Cerberus.
For me it goes Reaper > Geth > Cerberus.
Cerberus is pretty straightforward. Really the only thing you have to worry about are the Phantoms and sometimes the Engineers can be pretty sneaky with their turret placements...i.e. placing them at random spots on the map that you and your team aren't even near but when you find yourself having to go down there (i.e. to get an object) WHOOOOOOOOA! there's a frickin' turret.
Geth are the hardy middle-of-the-ground troopers. They only have 1 "true" heavy unit, that being the Prime which I'd say is a lot more dangerous than an Atlas. But they've got a ton of specialized units. The Hunters, in particular, are a HUGE pain in the ass. Their pyros can be pretty sneaky when they flank you, and the rocket-troopers are essentially their snipers but still, not that dangerous if you're paying attention and have a good team.
Which brings us to the Reapers, those god damn bastards. As representatives of the singleplayer's primary antagonists, I think they were designed to be the most difficult. Their banshees are frickin' nuts, their marauders are frickin nuts, and the Reaper equivalent of a sniper class is the Ravager...something that comes equipped with semi-automatic rocket launcher that can easily fuck you up if you don't see the Ravager first. All in all there's nothing that isn't a complete pain in the ass for the Reapers. Cannibals chuck grenades, husks apparently glitch through attacks and grab you anyways, and both of them get those armored barnacles that make it so you HAVE to get a headshot to kill'em.
Which is why I say the difficulty goes Reaper > Geth > Cerberus.