Bought many of them (they are cheap!) since I only had the Season Pass and no preorder exclusives (which I wanted but couldn't find when I got the game)...
The Sonic Electronic Ball Breakers are awesome to freeze bugs in one spot while your buddies gun them down....
Ripley's weapon is great at close ranges or for spraying fire while running, but you can't aim down the sight with it...
The Double Barreled Shotgun is excelent and even better than all the other shotguns at close quarters and can get you single shot kills in the MP game...
The Sharp Sticks work better at mid distances and against swarms of enemies or big bugs like the Crusher...
And the Phase Plasma Rifle looks ultra cool and works great at long distances.
The movie skins are nice and the Firing Range is a great addition to the game....
Hope this helps...