The T....shudder!
Haven't ridden the T much, but the subway in NYC was kinda disconcerting. I loved the Metro in Tokyo, though! The stations were always clean and well lit, the platforms didn't give you the creeps, and the people ON the subway were always VEY polite! It's considered extremely rude to talk on cell phones on the Metro, so all the cell phone companies offer C-mail free to their customers, so if someone else has the same cell phone company, you can text message each other for free. So you could sit in the Metro car having a conversation with someone entirely in text messaging!