New Road Bike Newbie

[borse2008]

I have originally posted about this before but have got a little bit further in knowing what i want and what the bikes feel like.

Im looking for a road bike, which is at least 105, or ultegra mix. Weekend rides, commute to work, and events/sportives. The two which i have provisionally decided with and ridden are the

Cannondale 105 Carbon Synapse 2015 or Ultegra
Trek Domane 4.3
Trek Emonda S5 and SL5
Ive also looked at a Pinerello Razha 24

The price point is up to £2000, I can get a 2014 Trek Domane 4.5 with Ultegra or go with this years model. The colours and quality of the brand is swaying me that way but as im a newbie i dont really have much to compare to. I had a look at the Cannondale Ultegra.

Can you guys see any differences in the 2014 or the 2015 trek domane ?
http://www.evanscycles.com/products/trek/domane-45-compact-2014-road-bike-ec054309
http://www.evanscycles.com/products/trek/domane-45-2015-road-bike-ec068737

Which would you go for over the cannondale synpase 105 or ultegra?

http://www.evanscycles.com/products/cannondale/synapse-105-5-2015-road-bike-ec071019
http://www.evanscycles.com/products/cannondale/synapse-ultegra-2015-road-bike-ec071018

Opinions?