Why not finish Gears 2? You should be able to knock it out and then move on to something else.
If the Missus likes the Bioshock music then there's no particular urgency to playing that in her absence. I think you should have a break from GoW. If you don't think it's a brilliant game then you will get GoW burnout if you play II straight after the original. Best to take your time getting through GoW II and III, that way you'll get maximum enjoyment out of them. You've already played ME2 so do you really want to use a free weekend to re-play a game? You got pissed off at Deadly Premonition on your first attempt, it's a risky proposition to pick it up again. Arkham Assylum is sitting there ready to be played again and you know you like it.
So it seems like you should finish off Gears 2. Then because all the other games have reasons for you not to play them other than Arkham Assylum it seems sensible to give Batman another hit out.
Personally next bachelor weekend I get I'll be playing Demon's Souls.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix
