The weight of the winch can vary somewhat

The weight of the winch can vary somewhat.  If you're primary consideration is to keep weight down, you may want to pay attention to those specifications.  More important may be the dimensions of your twin motor winch.  There are many aftermarket bumpers where the winch mounts internally.  Therefore size may matter.  Of the many different types of winches on the market, the sizes and dimensions can vary considerably.
Solenoid mounting can be a major consideration.  Winches can either have an Integrated or Remote Solenoid pack. A remote solenoid is externally mounted off of the winch. An integrated solenoid is part of the winch either within a "bridge" over the heavy duty winch cable or mounted else where on the winch such as above the motor. There are benefits to both types of solenoid mounting options.  With space restrictions a remote solenoid can reduce the space require to mount the winch itself while the solenoid can be mounted remotely while an integrated solenoid offers protection in a compact package.