C141/GWS Pico BB+/Multiplex Pico - Small and very reliable servo, no drillin or glue needed for speedhack. Have become popular in the “fairyweight” class in the USA.
Supertec Naro HP/BB - Motors burn out on 4.8V in a short time. Not designed for continuous operation.
Tower ProSG-50 - 5 gram, 0.7kg/cm - Recomended not to be used in Antweights.
Saturn S62 - Small and cheap, easy to mod. Spare gear-sets not available.
BMS-306/BB - Light, not so much torque, works on 6V, may even work on 7.2V.
SD200 - used in Antweights who wanted a lot of power. Quite slow but provides a lot of torque and pushing ability.
HPX F/Park Flyers - One of the quickest servos around. Perfect for flipper and lifter. A bit unsure on for drive.
Hitec HS-81 - Gears strip very easily, not recommended as drive servos.
S3003 - Standard servo. The best for beginners with no servo experience. Big and heavy. very quick when speed hacked.