TCR Advanced 2 or Advanced disc

So, Im on the verge of pulling the trigger on a new bike. After riding a Kestrel Talon 105 for about eight years im looking to switch to a Giant TCR. I have narrowed it down to two options:

Giant TCR Advanced 2 - MSRP $1900 - https://www.giant-bicycles.com/us/tcr-advanced-2 TCR Advanced KOM -...