You're 5'11 and 160lbs? That's kinda thin already isn't it? A few months ago I had the same goal. I got on a diet (nothing extreme, I just watched my calories and macronutrient ratios). and I lost a lot of fat. My abs started showing. Problem is, I lost fat everywhere else, and I just looked smaller all over in general. Sure I had abs, but, nobody can see them when your shirt is on, and when you got a shirt on, you just look like a skinny little guy.
Chicks don't dig that.
Why not start training and get big all over, then try cutting next summer?
I'm finally at a more "normal" weight, and my girlfriend still thinks i'm too thin. So, just some thoughts from a guy that's been there.
Good luck with whatever you choose.