I have flown them both. Being a bigger person, the Cirrus is for me. The Columbia was one of the most uncomfortable aircraft I have had to sit in. The Cirrus seemed much more repsonsive at all speeds and had better all around visability. The Columbia went a bit faster but felt heavier and needed the trim to keep my arm from falling off. Cirrus did not land quite like the Columbia which again felt more like landing a Hawker - Not much flare.
One thing that came up in the Columbia was that we needed special jacks to change the tires.
I like the Avidyne over the 1000 and from the conversations around here that seems to be a concensus. It is more intuitive than the Garmin. I flew the Garmin in a 172 and at that speed, I had plenty of time to figure it out.
Our airport had about 10 Cirrus and one Columbia. That is the vote.