Sparkfun Openlog - arduino pro mini, pro or nano

Hello,

I want to do data logging for a small rocket project and have limited space there only so i need the parts to be small. I want to use Sparkfun Openlog. There needs to be a sensor connected which has a 8 pin dupont connection. The data from the sensor should then be saved directly in the openlog sd card.

What would be the best choice for size reason to connect the openlog with? An arduino pro mini with atmega328 module or an arduino pro or an arduino nano?

Tks a lot