Best M4/3 Camera For Low Light Photography?

(I posted this in the Open Talk forum but I realize that I should have posted it here in instead.)

I'm intrigued at the various lens options for the micro 4/3rds system. I considered the NEX system for a while but the lack of current AF lens options (affordable primes more specifically) is glaring. I also read of the dial buttons becoming unresponsive after more than 5000-10,000 shots.

I dabble in street photography but my main genre is spontaneous (unposed) portraiture indoors (with usually poor lighting). I'm wondering what micro 4/3 option is best for me.

My criteria?

• It should have an articulating LCD screen (for candid photography).

• Performs reasonably well in low light.

• Compact enough to be taken everywhere.

• Durable and should last awhile.

Thanks in advance.