Honestly, if those are the two bikes that they are comparable. The bike I linked to has Apex gears as opposed to Tiagra which are comparable, if not better, than the 105's on the blue bike. the 11-32 cassetts makes it comparable to a "triple". In simple terms, if the bikes you are choosing from are the ones I listed than the blue one is no better than the pink one.

People thought the pink one has Lower end components (tiagra) but with Apex, the components are the same. Therefore, I would go with the color that you like.