O.k., I know I'm this is probably going to be an unpopular viewpoint. But after a particularly frustrating evening of fighting them, I find that BA suck most of the fun out of playing for me.
To me, it this comes down to a combination of how much damage one or two BA can do (for it's size/weight) in conjunction with how hard they can be to kill in a game.
Maybe it's the network lag (even though I usually have a ping of between 50-150 ms), or maybe I'm just not that great at it, but they often seem ridiculously hard to kill. (Even when from the game visuals, it appears you have delivered a hit). Well, at least when they're not standing still...
I tried an Uller prime combo of LBX-5/SRM6. Looks like I hit, but (at least no obvious) damage. O.k., not strong enough. Moved up to something with an ERPPC, LBX-10, or AC-20 same deal. I would have thought that the area effect would be greater on something presumably so lightly armored (given its size).
Some people might not care much about the physical realism aspect, but looking at the damage side, they seem overpowered to me. Given the power/size (or power/weight ration) I should be able to strap 5 or 6 of their weapons to a mech. (adding negligible weight) and be able to crush a comparable size and weight mech.
Either that or, with the same Power/weight ration of a BA, a Mech. should be able to vaporize a small building in one shot... or maybe let me carve my initials in a nearby moon...
Heck, you'd think that if Mech's can have LAMS, they could also lock onto BA automatically to defend your mech...
(Maybe BA is made out of the same neutron-star material that MWLL chain-link fences are made out of. You know, the four foot high ones that can stop an 80 ton mech. without getting pulled out of the ground :-)
There, I said it. I know it's not going to be well received, but to me BA seem closer to a light weight mech in strength/armor with disproportionate mobility.
The end result is that (it seems me) what should only be annoyances too often turn into something that ruins your whole day.