Both are great reels for a light line rod. The Trout only comes in a standard arbor design. It is a little lighter than the Creek but both would work well on a 2wt.
The Creek comes in a standard arbor and a Large Arbor (its more like a medium arbor). The creek has a little more weight. You can interchange the standard arbor with the LA arbor spool. So that makes it more usable on different rods. The standard arbor holds more line than the LA.
I think it comes down to picking the arbor size you like best.
Abel Creek LA No1 3.8oz
Abel Trout Light, 3.1oz