Mass-effect – Which Bonus Power for an Engineer on Insanity mode

The Xbox 360 version has Kinect support, which is exclusive to this version.

The PC version requires Origin, which is a bit stricter/more intrusive DRM than either of the other two platforms. However, this also means it is digitally distributed as opposed to needing to purchase a physical disc.

The Playstation 3 never had the original Mass Effect, (at that time, the game was an Xbox 360 platform exclusive property on consoles) so you may be at a slight disadvantage if you would have made different choices in the original game that effect the starting point for this game. For instance, your choices in ME1 near the end of the game change certain War Assets in this game.

Aside from these differences, I'm not aware of any platform-specific DLC exclusives for any of the three versions.

There were a few pre-order bonuses which could be considered platform exclusives, for instance preordering the PC version via Origin would have secured you a AT-12 Raider, which is a unique shotgun.

My strategy for the Banshee is fairly class agnostic.

First, try to wipe out everything else that you can, so that you're down to just the Banshees left. This can be tricky, but they tend to move more slowly at first than other enemies, so if you put some distance between you and them, the other enemies will rush you and you can focus your fire on them.

Mostly my strategy is to run. I run like hell. The Banshee's really only got a couple of attacks. First, don't let them get close to you, and second, keep enough distance that you can rapidly turn a corner if they throw their warp projectile at you. Then it's just a matter of wearing them down. The heavily armored, so use whatever anti-armor gear/powers you've got on them. Their barrier recharges relatively quickly, but it's pretty weak by comparison.

Getting hit by their attacks not only does a ton of damage, it also causes you to take some damage over time. Prioritize getting enough ground and cover between you and them to block their ranged attack when it comes. If they start teleporting, just start running.

I try to train the Banshees myself, and keep my squadmates alive and focusing fire on them one at a time. My squadmates really couldn't tank the Banshee worth a damn - they tended to go down quickly if it focused on them. If they go down, do a couple of laps of your arena to get some distance, and you should be able to spare enough time to get them back up again. Having maxed out medi-gel so you can just instant-revive them and/or recover your own health is a plus.