Blue Norcross SP vs Giant TCX 1
 

I'm in the market for a cyclocross bike and I'm having trouble deciding between the two. One difference I know of is the bb30 on the Blue. I want to run single speed. Which would be easier to set up as a single speed? I know of the eccentric bb that can be used on the bb30 that negates the need for a chain tensioner.

Please provide some input and help me sway my decision.

If geometry isn't a concern, I'd opt for the Blue. I ride the Norcross EX and love it. Rides very similarly to the Ridley. And, yes, the eccentric BB will make running single speed super easy. Some of the guys on Team Beer (Sacramento) use them with good results.

You could also opt for a Felt Breed if you want an out of the box single speed.

I have the TCX Rabobank and I like it. However, I cannot provide any useful insights regarding single speed as the only experience I have with them is the single speed bike I had when I was a kid.