My Opinion

 Yet they can be very annoying in Galactic Assault, especially BB8. BB9E is weak and I've never seen anyone playing him ending up in the top players. His abilities are all supportive and his damage output is ridiculous for a hero. Any experienced heavy infantry player can outdamage BB9E, especially if we consider his range is only about 2 meters. He can be fun to play as some weird football-assasin, rushing in with smoke screen and picking off two-three enemy soldiers, then disappearing in the heat of the battle, but don't except getting high scores or killstreaks with it. He's a good support character in HvV when you have a good team, but can't take a Luke or an Anakin on its own (if they now what theyre doing of course) - and this is exactly right this way.

BB8 on the other hand, has one of the most powerful abilities in the game, and I still think its a shame such a disliked, uninteresting dumb character got. Cable spin can clear entire rooms, rolling charge is as good as Han's shoulder charge, and he can also weaken eneimes so they take more damage. An experienced BB8 can make a huge mess in the enemy team, is great to hold control points and stronger saber heroes can't always just chase him down in GA. I think Dice really did a good job making him playable, because I really couldn't imagine how would that be possible, but it just feels wrong. Ventress-Ashoka; Qui-Gon - Plagueis; Mace Windu - Savage Opress, even R2-D2 would have been a better choice, yet they still picked the two no one wanted to see.

And I thinik the solution would be a grapple move. Heroes on both side can perform this move if they use melee strike on a smaller target (the BB uints). They basically just pick them up and instakill them in one move... just imagine Vader or Grievous ripping off the head of BB8. The downside is the move takes about 3-4 seconds to perform, so it cannot be used in wide open areas with lots of enemy troopers.