Bikes can be very different with similar fork travel.
My Whyte 19 has 120mm Reba forks with bolt through. Handles XC and flat like an XC bike but is a bit more stable and has forks that can handle some abuse. It may tempt you towards the silly stuff but when there they bottom out and are generaly out of their depth.
My old Balfa Minuteman had 140mm Pikes but worked best at 120mm. This bike was total hoot on silly stuff descents but a bit of a pain on anything slopey upwards or flat.
Much more to it than simply travel and weight – the Whyte is the more versatile of the two and was even pressed into SS duties for SSEC2010.