My last bike was a 56cm.
My current bike is a 56cm.
I'm very comfortable on both.

I'm going to go for the the 54cm.
I'll play with it and adjust it as necessary.
It's going to be a commuter/short distance bike.
Nothing over 10 miles at a time.

I just want to put together for the streets of New York City.
Something like a Roadie version of an Urban Assault bike.
25+ tires, SPD/Flat pedal combo...something that'll take a beating.