I'm currently in research mode for an upcoming pickup purchase. I haven't test driven anything yet.
On the surface, I like the Colorado. I can get it in the configuration I'm looking for (4x2, crewcab, 6' box) and I like the looks, inside and out. However, there are quite a few quality issues with it. The major issue is with the transmission. There are a lot of stories on line about transmission shudders at highway speeds and a lot of return visits to fix the problem. GMs first solution is a transmission flush but it starting to look like the issue is the torque converter. Its funny that the transmission is the GM version of the unit designed in conjunction with Ford.
I can't get the Ranger the way I want it so I'm not even going to look at it. I can't get the long box with the crewcab and in Canada they only come with the 4x4 drivetrain. So if I don't go with the Colorado I'll be going with another F-150.