Not necessarily speaking on those particular balls, but lets say in general the difference I notice with the different covers it the response you see to friction. Some balls may be more exaggerated than others but all are definitely different.

 As for abralon and abranet, I believe the abranet is more like a woven abrasive when compared to abralon.

Some mentioned it, but the reactions you see will depend on a few factors.
We can try to remove different variables to understand the impact.

Core: One key factor will be the core of course.  Since it is the steering wheel, the overall SHAPE of the reaction is dictated by the core.  That's neturalized with these balls.

Drilling:  Let's assume you would drill them identically.

Pattern: THS vs sport shots.  These will be quite different.  On THS, these balls could look very similar.  Many times, they can look almost identical if you don't look closely at the ball reaction or are not using tracking software like Digitrax.

On sport patterns differences will be magnified.  So you could go from a 1:1 board difference to a 4:2 or completely different zone play.

If you look at the USBC ball motion study, differences are much less between balls when the surface gets to 2000 abralon or higher grit.  That's when Ra or surface roughness is almost the same for the majority of the balls.  So all those balls to claim high surface roughness which is true out of the factory, will be almost negligible if you put on higher grits like 4000 or polish.

If you set them all to 4000 grit with polish, there will likely be very little difference since you've essentially negated the most influential of the surface friction factors.
If you sent them to 500, then you will see more obvious differences.
If you're somewhere in between, the potential difference between the solid and pearl would be maybe .5 to 2 feet in length, which will essentially change some of the entry angle or energy at the pins.
You'll have to decide then which one will carry better. 

They are different enough.  Sometimes folks go for solid and pearl compliment.  Sometimes, folks like to have the hybrid which can play like either ball depending on the finish.  Sometimes hybrids seem more than the sum of their parts by creating better match-ups to the lane conditions.