Dockers D1 vs D2 vs Alpha -- Best khaki that isn't tight?

[nycbsn]

I'm looking at dockers and trying to figure out which fit is best for me. I've tried on D3 in the past and it just has too much room. I'm a reasonably thin/average guy with a very small pot belly that's not noticeable, I'm 5'8 at 165lbs. I'm scared to try the D1 and Alpha collection because I don't want it too look very tight on me, I want there to be some space in the legs and seat but not like sloppy baggy pants if you know what I mean.

Any suggestions?

 

[tubeman]

D2 is basically their version of a "straight fit", I like the way the D1 and Alpha fit better, if your usual size doesn't fit properly you could size up and have the waist tailored.