Go for the 38 for sure. With mine I can ID animals pretty far out, and def see animals way far out.
My definition of pretty far out for ID: 400 yards plus depending on movement and other characteristics
My definition of spotting way far out: over 900 yards. under ideal conditions (low humidity) prob could see over 1200 yards out, but with full humidity it drops down to 5-600 yards max. Conditions really make a big difference, and it may not be as bad as what I am saying, but clarity and details go way out with high humidity, spotting doesn't probably suffer as much.