Ride everything you can. You just never know. I had my heart set on a Cervelo. But it felt...I dunno...off. LBS handed me a Felt....and that felt...well, really bad for me. Tried Bianchi, Specialized, Fuji, Trek and then...happy day...an Orbea.

Ding! Winner!

Fit like a GLOVE. Made for me I swear. No idea who or what Orbea was, just knew she fit and felt like riding a Formula 1 race car.

So no matter how much research you do, don't go by text and names and numbers. Go by feel, fit and comfort. Than make things work by text, names and numbers. Ultegra vs Red isn't going to make the bike feel better or worse. So once you find the fit, then find the other things that make it even more awesome.
Denise