I use deans everywhere, because they are relatively easy to solder,and have polarity protection, but yes they do tend to come loose, esp. knockoff ones. I try my best to route my wiring in such a way that crashes and jumps force it to stay on, but this is not always possible. Try and zip tie down the wires so they don't work loose.
I've tried xt30 before, which is the smaller version of xt60. They definitely feel like they won't come apart, but are trickier to solder and are heavier/bulkier than their deans equivalent. Think carefully about wire length and where to zip tie it down.
Anderson powerpoles require crimping instead of soldering. I am personally quite nervous with crimping connectors as they are prone to connection/fitment issues and tend to make the wire fragile.