[mman1506]

I have a lot of experience with XT connectors as they are connector of choice for personal projects. I used to use Deans connectors but they are much easier to melt when soldering and occasionally the spring tabs would bend ruining the connector. XT connectors are also easier to solder than Deans because of the cups on the terminals.

Personally I would rather solder connectors than crimp as it requires less specialized equipment and lessens the chance of a intermittent or high resistance connection which can be very difficult to diagnose.

Another advantage of RC connectors is that they are gendered(male and female) unlike Anderson connectors. This prevents a user from plugging a battery into another battery or the motor side of a speed controller into a power source and destroying it.

I've never been a fan of JST connectors, they are very low amperage and only really useful for something like LEDs. They are also difficult to grip and pull apart without tugging on the wire.