i personally use traxxas connectors on all my aircraft and landcraft, haha. probably because i never used anything other than them, so i never wanted to change my charger and esc and all that. but like on the quad i just made, the battery has HUGE wires, and im 100% sure they wouldnt fit on an XT60. Traxxas connectors are really really easy to solder, and as mentioned with bullet connectors, you do one at a time, room for mistakes. and unlike deans, they have a grippy, rough surface. downsides though, theyre expensive and about 2 inches long when connected, so if space is tight, its not good. But i see them as an improved version of deans.