Giant TCR or 2015 Pinarello Dogma F8?

Looking to upgrade from my current Triban RC120. Found these 2 options at a similar price

1. Giant TCR, looks amazing, has SRAM Force mechanical shifting, recently serviced

2. Pinarello Dogma F8, Carbon fibre frame and handlebar, Shimano Ultegra electronic shifter components, Dura-Ace crankset, Fizik saddle, Bontrager wheels, Mavic Aksium rims

Which one would be a better buy? I also dont want to spend too much on maintenance/repairs. Many thanks!