I think we are all biases around here - so go for the Outlook!
I normally see comparisons with SUVs / CUVs - so your request is certainly unique! CTS vs. Outlook - I have to say that is a first. I've ridden in both and have to say you have made two fine selections - so I'm sure you will be happy which ever way you go.
What is more important to you? The Outlooks room? CTS style? It may come down if you really want to be driving a CUV or a car for the next 3 years. I was in the SUV / CUV market specifically, so that made my choice a little easier.
On behalf of the Outlook - I have White Diamond - Loaded with Tan Leather - we've taken it to the mall shopping for Christmas and parked in an upity mall in Dallas - next to BMWs SUVs, Lexus SUVs, Land Rovers, Hummers and all the rest - and I never thought two years ago that a Saturn product would stand out in such a line-up of luxury brands. But we've seen more people take double looks and walk around to look at the brand - it has been quite a fun time. When we are at the stop light, we see people looking at it. And our friends that see it say, this looks like a Lexus when they get inside.
Needless to say, we have been very happy with our choice. Good luck with whatever you decide - I'm sure you will do your homework as you are already researching.