The Boston rocks. Fast, and has a great climb rate. The reason You don't see them is because the thumb twitchers who never take them above 10K get killed alot in it, and they leave it alone. The Boston is great if you take it to just below the cloud layer at 17K. All the weed whackers are far below you, and can't get up to you before you drop your load on target. If they do try to climb up to get you, they are slow and have no hope to catch you, also a shallow dive back to the closest base will extend your escape and put your pursuer in amongst friendly fighters before he can catch you.
Sheesh, people don't think about tactics anymore. All the thumb twitching, weed whacking, squeeking, Quake players are down low. It is the fastest way to get to the closest enemy base. That EverCrack mentality they have, can work to your advantage, if you just think about how to get around their playing style.
I love taking Bostons into "meat grinders" because it generally means that I can fly over their base with impunity at 17K and drop any target I want and get home unscathed.